Small issue that I'd like to throw out there which may fail in comparison with others. I do love to use my radio streaming apps (Fav: TuneIn). On stock ROM or GB, if I had the ringer set to on - when I got a text message there would be a slight pause in all sound and then the stream would pick up again. Now if I have the ringer on and I get a text, the sound drops and I have to hit the sound rocker button for sound to start again. If the phone is on silent or vibrate, the streaming audio will pause and then resume as expected. Same thing happens if I take a photo and the shutter sound engages.
Not a big deal, but if its not fix - I'll burn this mother*$(%^# to the ground.