I've got one, and have been using it allot.
So far so good, Just concerned about 2 things. The external antenna. It has taken allot of abuse and starts to show signs of ware after a couple weeks of use. In the woods it has trouble, showing no dogs or dog on point. False, I can see the dog running in front of me.
Either way, i think it is a great tool and hope that one day i can trust it enough to loose the TRACKER system that works great.