I have it and as Mike said, I do have some issues.

1) Some contact info was lost. My dad's cell number for example. I don't know what else is missing
2) Listening to music totally locks up the device (HTC HD7) and I have to pull the battery. According to what I've read, it seems to only affect this device and only if you plug in head phones. Blue tooth head phones work correctly.

I have seen a couple of complaints about the turn-by-turn navigation that it doesn't automatically update your position, so you may actually miss your turn.

>I had to force it last night.