I also bought this a few weeks ago when it was last on woot.
I haven't been able to use its bluetooth feature much, because for some reason it's having problems with my iphone 3G, but the phone is so old and troublesome it might be the problem with the phone, I've tried a 4S with it and that seems to work.
The directions it gives are...ok. Often I find that it is a little circuitous in how to route things in town centers. In comparison to what I'll try in google maps this device may add 10% distance (though in some situations that extra distance goes through dense areas so it's more than just 10% time.)
I'm not sure if mine isn't working perfectly, but it's often not exact with addresses. I run delivery routes, and it often calls the address ("you have arrived at 123 main street") about 2-4 houses away from 123 main street. In contrast, Apple Maps on the iphone 4S seems to hit the address every time.
There is something about the display that doesn't tell you a turn is coming up as soon as you need to know. It's fine with voice on, the voice gives you the head up, but with voice off you have to watch the distance to the intersection and get yourself prepared when it says the turn is .2 miles away. Otherwise it just appears on the screen and it's too easy to miss and I don't recall having that problem with a friend's Garmin.
It doesn't include speed limits...wish it did.
As I said, I run delivery routes (and got it for that purpose.) It has a multi-destination routing feature that allows you to "optimize" the route. This feature doesn't actually "optimize" the route (in terms of finding the most efficient way of running the route either in terms of time or distance (mapquest does this nicely)) all it does is order the places you need to go from closest to farthest. It's a cheap form of optimization which might work as efficient from time to time, but I was so disappointed to find that out.
I have contacted customer service here and there and they seem to take customer support seriously, which is nice.
The interface is a bit slow and clunky, but not severely so. I get impatient with bad, slow interfaces, but this only bugs me a bit, I don't want to slit my wrists over it. That's probably as good as you're going to get from a GPS manufacturer.
I'd give it 2 1/2 stars but for the cost I can conditionally recommend it. Customer service is good, it works reasonably well for using from time to time, it's a nice-sized, bright screen and you can tolerate the quirks.