I had been holding off on installing a Froyo ROM, and when I finally decide to do it, there's Cyanogen et al to the rescue. I flashed this ROM first thing this morning after getting to work, and aside from not being able to download certain apps from the app store, I'm completely satisfied and I won't ever be going back to 2.1. I'm also apparently immune to most of the bugs that some are reporting. Bluetooth connection to Sync in my truck works great, as well as wifi.
On a side note, I had been a little leery about ditching Sense but I've found that I like the AOSP flavor of Android a lot better.