Got mine today from Mobilefun.com. Is it worth the price? That's subjective, I guess. I wish it was cheaper than what I paid. However, I drive a ton, and it was getting very dangerous looking down every few minutes to follow the GPS.
The build quality is very good IMHO. That being said, I wouldn't go throwing it around and treating it badly. You definitely want to use some TLC with it. I'm not one to bully my gadgets anyway, so I have no doubt in my mind it will last.
I have it mounted to the windshield. I kept the plastic on the rubber mount so the stickiness wouldn't wear off or get all over the windshield. I have apprehension about mounting it to the dash, I don't want the "glue" on the suction cup all over my dashboard. Plus, the windshield mount works perfectly, although it did take a few tries to get it to stay in place. I can say with 100% certainty with the protective plastic off the suction cup, it wouldn't go anywhere. In the end I wiped everything down with an alcohol wipe and it didn't move once mounted properly.
NFC took a tap or two and it worked. The weather issue has been solved as it had no problem recognizing where I am. I easily added my contacts and adjusted my "quick tap apps" and I was good to go.
Charging wise, it works. I left work with 43% battery left, I got home 20 minutes later and it was at 48%. I did not turn any background tasks off. While it may not be a "quick" charge it certainly wasn't draining the battery.
I'm glad I got it. I was going to hold out judgment for a few days and sell it on eBay if it didn't work out. Even after the first go 'round with it, I won't be doing that. It is much cheaper than buying a full-on GPS that is for certain. If you can spring for the extra bucks get it. If not wait and see what it will be priced once it is officially released in the US. If
Cell phone accessories :: MobileFun.com is any sort of guide to pricing; it may be much cheaper once it is "officially" released here as the DT-910 is going for $88.49 on the website.