I tried it yesterday, it was ok, but I'm glad I made a backup and flashed back to it right away. It is nice, but the huge downside for me was that it didn't register all the internal memory, it only saw 256mb of it, not all 512. It was VERY slow to start, but a quick setcpu fixed that issue.
Couple 'screen' glitches of the visual lines and such. Other than that, my facebook worked, sms, phone, everything worked well, it just was those little things that I'm sure will get fixed very shortly. Can't wait till they do!
I personally like certain aspects of Sense, and others I do not. So.....it's difficult when all of them are suddenly taken out. I've been LOVING it with the Pro Launcher Beta. That launcher rocks, best one I've used, for me personally, yet. It's great to see roms finally being worked on! I can't wait to see what this turns into once the little bugs are worked out, this thing will be awesome!