I've had mine for 11 day now and so far I'm really loving it.
My biggest surprise was how quickly I adapted to reading on the LCD screen. It did take a few tweaks here and there to dial in a nice screen I enjoy by adjusting the brightness and different color background. But after the tweaks I'm finding it much more enjoyable then I could have imagined.
I do enjoy the extra screen real estate. I think 7 inch is really the sweet spot.
I enjoy reading in bed with the lights off. I LOVE the "night" setting, It works great in our living room as well, since we like to watch TV in low lighting.
Web browsing was also a surprise. It's very fast at connecting and loading up pages. Not quite as fast as my Droid X but not too far behind either.
can't wait unit Flash is supported.
Also very pleased with how responsive it is.
I've read a couple of newspapers and one magazine. I enjoyed the magazine reading (Rolling Stone) on this.
The newspaper is the exact same rendition you see on the regular nook, just with color. I would like to see that change to the style used by the magazines but it's no big deal.
So far being just shy on two week, I can say I'm very pleased.
How about the rest of you guys and girls