Two main concerns for me right now:
#1. Battery life....my CM 7.2 RC1 (vanilla) is amazing with this aspect.
#2. The capacitive buttons. I'd rather them not rotate if they don't completely work because that's just the OCD part of me
Also, what are some non-default ICS apps that are good to use? I know some people replace the stock camera app, along with the default launcher, etc....any common ones? I'm used to Gingerbread stuff....