I've been using the Seraphim ICS rom, and it's my favorite rom for the Note so far. Very fast, very stable from what I've experienced so far. And the battery life is great. I'm coming from the ICS leak from Dagr8, and I was on a custom GB rom before that (can't think of the name off the top of my head). This is the best performance I've gotten outta my Note so far.
The one gripe I have with it is that I can't seem to add folders...could just be me though...nobody else seems to be complaining of that issue on the thread. If you're interested, check it out here: