My SII arrived today and can honestly say until you see the screen no words really do justice to it. It is amazing. Speed is awesome - rooting was easy. My only complaint so far is that it seems to get hot... haven't had any reboots yet but it was definitely toasty while I was using it to browse the web/flash extensively. I have since installed the 10.3 flash update and haven't been able to replicate that level of warmth again.

Wont post a full review since there are many already out there.