I've had my AT Pro since it's inception and it has worked great for me. In fact out of the 3 various brands I own, this is the one I use 90% of the time. It is simplistic and works fantastic. If you're worried about a new model coming out, there's no way around that. New models are coming out all the time so unless you want the latest and greatest, I would just buy a competent detector, learn it well and be happy with it. That really is the key to metal detecting. Learn you machine and become one with it.