OK,
I've had my KO for just over a month now and thought I'd post some reflections on how I've found it to use. Meant to post this on the 27th, one month to the day after I got mine, but the holiday weekend got in the way!
For this thread, I invite others who've had their Oasis a month or more to post their impressions! If you're not quite there--you'll be there soon!
I have the Oasis WiFi with Merlot cover. Call sign: Calypso
Screen: I still like the screen very much--I keep it at level 11 pretty much all of the time--day, night, light, dark--and mine is very even to my eyes. I don't see much in the way of the cones/scallops from the side--or at least I don't notice them at this level; I did see them when I got it, when the light was at a higher level.
Ergonomics: I read left-handed most of the time, if I'm holding it. Which I do most of the time. I've found that when I do switch hands, I don't rotate the device--I just use the touch screen. It's less awkward for me to do that than to rotate it. I suppose I could keep practicing doing the rotation and it would be second nature eventually, but using the touch screen is second nature now.
I do put it in a stand some times, while at the table. When I do, I use this stand:
SUNWORLD Smart Phone and Tablet Stand - Foldable Vertical and Horizontal Mount for iPhone / iPad / Samsung Galaxy / HTC One and all Mobile Phones Black
It was $1.47 with free shipping when I got it, but is $3.50 now and is only free shipping if bought as an add-on item.
This item, which looks the same to me, is currently $1.76 with free shipping:
Smart Phone and Tablet Stand - Foldable Vertical and Horizontal Mount for iPhone / iPad / Samsung Galaxy / HTC One and all Mobile Phones Red

I already had a similar stand to these that I had gotten several devices ago. The Oasis only fit in the slot of that one without the cover. I thought I'd get another one to tuck in my purse. The black stand's slots are wide enough to put the Oasis in with the cover on. The black stand weighs half an ounce, so very light, and would fit easily in a pocket.
Buttons: The page turn buttons are in a good place for me. When I first got it, I tended to hold it with my thumb between the top and bottom buttons. Now I mostly hold it with my thumb just below the bottom button (which is "forward" for me.). I still wish the power button was on the back, like on the Voyage (one of the things I like better about the Voyage) because I still tend to let it go asleep with the cover folded back, which means I either need to unfold the cover and then open it again, or press the button at the bottom. I can find the button at the bottom a little easier than I could find it in other devices that had similarly located buttons--it seems to protrude a bit more. I wish there were a home button.
. The page turn buttons make me want a home button even more!
Operation: Twice since I've owned it I've had to do a restart (Press & hold the power button until the popup with Cancel | Restart | Screen Off appears) because it got laggy. Everywhere--selecting books, adding books to collections, turning pages in a book which was the largest problem! I've currently got 51 books on the device, not all downloaded at once. Could be indexing. If it happens again, I'll check to see if something is indexing. Once I've done the restart, it has been very peppy. Page turns (except when lagginess develops) seem crisp and the page refresh works well for me.
Battery life: I'm currently doing sort of a long term study of battery use and life which I'll post about in the Oasis battery life thread, but I've been happy with the battery life. I keep WiFi on all the time, and, as I've said, the light is pretty much always at 11, and I've got it typically set at either the 2d or 3D smallest font choice--which affects how often one turns pages--requiring a screen refresh, which draws battery.
I've been reading a lot lately, and I've been charging it up about every five days. Mostly I've been reading with taking it out of the cover and then placing it in the cover to recharge a bit. This last time, I've been reading it with the cover on since the last charge on the 25th. But I haven't been reading as much either--lots of stuff going on this week, including one day where I really didn't read anything. My experience does seem to indicate that the device draws from its own battery first and then is recharged from the cover battery.
I do check, when replacing the cover, to make sure that I'm getting battery percentage readings for both device and cover (by tapping on the gear in the top menu). I've had a couple occasions where, when putting the cover on, the percentages don't show which I assume means that the cover isn't seated perfectly. Re-seating it has resolved that. A couple of times, I actually got a warning from the device that the cover wasn't seated perfectly.
Which brings me to, Cover on or cover off?
I like it either way. It's amazingly light and comfortable without the cover. But it's also amazingly light and comfortable with the cover, just not quite so light as without the cover. I don't really have a preference, except that I'm really lazy, so I do tend towards leaving the cover on and just taking it off if I think about it.
I skinned mine with a custom skin from http://www.DecalGirl.com. I made sure, when putting the skin on, that it was completely flush with the back, including the part that transitions from thin to thick that has the charging contact on it, and have had no problems that result from the skin.
So, after using it as my sole reading device for the last month, I'm extremely pleased with the device. It's the right one for me!
I'll add other stuff as it occurs to me!
Betsy
I've had my KO for just over a month now and thought I'd post some reflections on how I've found it to use. Meant to post this on the 27th, one month to the day after I got mine, but the holiday weekend got in the way!
For this thread, I invite others who've had their Oasis a month or more to post their impressions! If you're not quite there--you'll be there soon!
I have the Oasis WiFi with Merlot cover. Call sign: Calypso

Screen: I still like the screen very much--I keep it at level 11 pretty much all of the time--day, night, light, dark--and mine is very even to my eyes. I don't see much in the way of the cones/scallops from the side--or at least I don't notice them at this level; I did see them when I got it, when the light was at a higher level.
Ergonomics: I read left-handed most of the time, if I'm holding it. Which I do most of the time. I've found that when I do switch hands, I don't rotate the device--I just use the touch screen. It's less awkward for me to do that than to rotate it. I suppose I could keep practicing doing the rotation and it would be second nature eventually, but using the touch screen is second nature now.
I do put it in a stand some times, while at the table. When I do, I use this stand:

SUNWORLD Smart Phone and Tablet Stand - Foldable Vertical and Horizontal Mount for iPhone / iPad / Samsung Galaxy / HTC One and all Mobile Phones Black
It was $1.47 with free shipping when I got it, but is $3.50 now and is only free shipping if bought as an add-on item.
This item, which looks the same to me, is currently $1.76 with free shipping:
Smart Phone and Tablet Stand - Foldable Vertical and Horizontal Mount for iPhone / iPad / Samsung Galaxy / HTC One and all Mobile Phones Red

I already had a similar stand to these that I had gotten several devices ago. The Oasis only fit in the slot of that one without the cover. I thought I'd get another one to tuck in my purse. The black stand's slots are wide enough to put the Oasis in with the cover on. The black stand weighs half an ounce, so very light, and would fit easily in a pocket.
Buttons: The page turn buttons are in a good place for me. When I first got it, I tended to hold it with my thumb between the top and bottom buttons. Now I mostly hold it with my thumb just below the bottom button (which is "forward" for me.). I still wish the power button was on the back, like on the Voyage (one of the things I like better about the Voyage) because I still tend to let it go asleep with the cover folded back, which means I either need to unfold the cover and then open it again, or press the button at the bottom. I can find the button at the bottom a little easier than I could find it in other devices that had similarly located buttons--it seems to protrude a bit more. I wish there were a home button.
Operation: Twice since I've owned it I've had to do a restart (Press & hold the power button until the popup with Cancel | Restart | Screen Off appears) because it got laggy. Everywhere--selecting books, adding books to collections, turning pages in a book which was the largest problem! I've currently got 51 books on the device, not all downloaded at once. Could be indexing. If it happens again, I'll check to see if something is indexing. Once I've done the restart, it has been very peppy. Page turns (except when lagginess develops) seem crisp and the page refresh works well for me.
Battery life: I'm currently doing sort of a long term study of battery use and life which I'll post about in the Oasis battery life thread, but I've been happy with the battery life. I keep WiFi on all the time, and, as I've said, the light is pretty much always at 11, and I've got it typically set at either the 2d or 3D smallest font choice--which affects how often one turns pages--requiring a screen refresh, which draws battery.
I've been reading a lot lately, and I've been charging it up about every five days. Mostly I've been reading with taking it out of the cover and then placing it in the cover to recharge a bit. This last time, I've been reading it with the cover on since the last charge on the 25th. But I haven't been reading as much either--lots of stuff going on this week, including one day where I really didn't read anything. My experience does seem to indicate that the device draws from its own battery first and then is recharged from the cover battery.
I do check, when replacing the cover, to make sure that I'm getting battery percentage readings for both device and cover (by tapping on the gear in the top menu). I've had a couple occasions where, when putting the cover on, the percentages don't show which I assume means that the cover isn't seated perfectly. Re-seating it has resolved that. A couple of times, I actually got a warning from the device that the cover wasn't seated perfectly.
Which brings me to, Cover on or cover off?

I like it either way. It's amazingly light and comfortable without the cover. But it's also amazingly light and comfortable with the cover, just not quite so light as without the cover. I don't really have a preference, except that I'm really lazy, so I do tend towards leaving the cover on and just taking it off if I think about it.
I skinned mine with a custom skin from http://www.DecalGirl.com. I made sure, when putting the skin on, that it was completely flush with the back, including the part that transitions from thin to thick that has the charging contact on it, and have had no problems that result from the skin.
So, after using it as my sole reading device for the last month, I'm extremely pleased with the device. It's the right one for me!
I'll add other stuff as it occurs to me!
Betsy