I currently am running evil fascination and do not have any major problems with it. I just look and it seems to be a outdated ROM, would my fascinate benefit from upgrading to a more current ROM like pool party?
Honestly, if you have no issues don't change. If you do, I suggest pwgb over cm7. Cm is still not ready to be a daily driver for me. Had way too many issues with Bluetooth and battery.
When was the last time you tried it? I have been on cm7 since it was released like what 2 or 3 months now? Its def a daily driver. I love it and highly recommend it!