Also coming from an OG Droid, this phone is incredible! I mean, the battery needs some serious improvement, and my signal will be -75dbm then suddenly -115dbm in a matter of seconds, without moving. These are clearly software issues, though, and they will get fixed... If anything, these issues will keep ICS Nexus-Exclusive even longer, as they won't be doing a widespread release if EVERYONE with an Android device suddenly gets as upset as some people here are!
I'm keeping it... Battery good or bad, I keep my charger in my coat pocket, and have a car lighter to USB adapter that makes charging anywhere a breeze.