I've been using the ROM update for months now, and it works very well.

The only thing I could possibly term as a bug is that the phone will simply lock up but appear to still be working... the only clue to the lock up is that the time is frozen when it happened, and I won't figure it out (normally) until at least 10 minutes later.

To be fair, this may not be a condition of the ROM at all, but some other piece of poorly written software that I've installed.

I say install the new ROM as quickly as you can; you'll be happy you did.