Been running the ROM for a few days now. My settings: 1.4 ghz, deadline, and interactive. I initially didn't run the scripts included, but after running them didn't see much of a difference. I'm comparing to Fourth Bar Revolution with Mackey 1.0.
Most things run just well. There doesn't seem to be a large difference between the two in terms of surfing with Chrome or using Flipboard. I loaded up a video in the Youtube app that lagged for me on FBR . It still lagged in spots, but much less.
Overall I'd say it's an improvement, but not as much of an improvement as I had expected. Keep up te work though and I'll happily keep testing.