Dash GPS - Opinions?

I'm finding it hard to believe, but I'm unable to find any discussion of the Dash GPS on the board here. I've been considering buying one since before they came out, and they've always seemed "almost there" but everyone reports a few nagging issues. I hate the idea of the monthly fee, but the traffic routing is an actual service that might be worth paying for.

Anyone have one? Experiences? Any other units you really like?

Matthew