I have a couple Droids but i have done most of my testing with the Droid2 Global
Everything seem to work just fine. I am using the same version of Bluesoleil and i have the same dongle
It connects well, pretty much flawlessly everytime. I have never had an issue with the audio transfer or anything else.
I don't have a permanant mic in the car so all my tests have been through a temporary crappy mic.
I do experience the Echo issue but that is inherant to all of these types of setups