I just bought one from Bestbuy after agonizing over this and Kindle PW for the past few days.
I've never owned anything other than a sony reader: I've had 500,550,650, and T1 and after the underwhelming T2, looked to look some place else.
I've been using it for the past 4 hours and everything looks really good.
I was afraid of all the software complaints but everything seems smooth and the light is awesome. There are some shadows where the LED is located but still it is pretty amazing.
The page-turns seem to be about 30% faster than my T1 and I really like tap to turn instead of swipe turn. I don't really miss the page turn buttons.
One question though, How do I use Calibre to manage collections? Does anyone know?