Not having any issues so far with BT, but I have had issues in the past with getting my headsets to pair with a new rom. Try this out.
1. Turn off BT and your headset
2. Turn your headset on and put it in pairing mode
3. Go into BT settings on your phone, turn it on
4. Scan for devices
I have used this approach every time my BT headsets (Jawbone ICON and Moto S305) fail to pair or connect when I am on a new ROM. For whatever reason, turning the headset to pairing and then turning on BT makes it pair and connect more consistently than the other way around.