I have nothing but positive reviews about bullfrog. Significantly better priced then the other two options in my town (arctic and sundance), i love the way it is set up, and the seat system is incredibly convenient (I have an extra seat, and we do move them once in a while).
I read on the internet about the seats being a "gimmick" and other problems and have quickly found not to trust biased reviews from hot tub salesmen.