I've been using CM7 stable for 6 days now and like it pretty much with a few hiccups.
* I had to do the Sense GPS fix, but afterwards it's been spot on.
* It's too soon to be sure, but the problem with a bunch of calls not coming thru has gone away and the stupid streaming bug that affected Amazon MP3 as well.
* At first battery life seemed really good, then not so hot. I'm running Battery Calibration now, so the jury's out.
* The CM7 camera app is inferior to the Sense camera in that it doesn't have tap-to-focus/exposure setting. That sucks.
* I've had a few instances where the screen blacked out and/or everything seemed to freeze (one time forcing a reboot).
* I don't have 4G in my market (Detroit = post-Apocalyptic cow town), so I can't vouch for that.
* My Bluetooth with my Ford's Sync system is flaky. It connects when I start the car, but drops off shortly thereafter. If I switch to Bluetooth Audio the system has to reconnect it and same with the phone. Any tips on fixing this would be appreciated. It defeats the purpose of the Sync to have BT funkiness.
* I'm using Launcher Pro - it feels better to me than ADW did.