I bought one last Tuesday and it was delivered yesterday. It is a very good tablet, as long as you are not expecting it to be the successor to the original Galaxy Tab 10.1 -- that honor will go to the Galaxy Note 10.1 when it gets released.
Back to the Galaxy Tab 10.1:
* It's big but thin and light. It clearly was meant to be used in landscape mode most of the time, but I find it more comfortable to type in portrait mode.
* The screen looks great with good colors. It is very responsive and I'd say better calibrated than the screen in the Galaxy Tab 2 7.0.
* The 16 GB model will only give you 11.97 GB. The rest of the storage is reserved by/for the OS. Still, my previous tablet (original Toshiba Thrive 16 GB) only gave me 10.1 GB of that storage so Samsung wins here.
* Speakers sound very good... for a tablet.
* The cameras are pathetic. I don't mind because if it were for me, tablets would not have rear cameras, though the front-facing one could've used some improvement.
I can't comment on battery life yet, since I've had the tablet for less than 24 hours.
One thing I say in Android Central's review, that I haven't figured out how to do myself, is that they took screen captures of the lock screen. I can't get that to work. Anyways, I'm happy to have a tablet where I can save files to my memory card from all applications! (Toshiba locked the external SD in the Thrive so only their proprietary apps can write to it. All standard Android apps are limited to saving in internal storage only.)