I purchased my wii fit without having had a go on anyone elses but I had heard a lot of good things from my best friend about it. It is hard at first to get the hang of the balance needed but once we had got it sussed it was fine. I really enjoy the step classes and i do feel that it has encouraged me to be more active. I think as a game accessory it has a lot of potential that has yet to be realised in terms of what the games offer. My husband and myself enjoy the competitive nature of some of the games too. The only real downside is the lack of accuracy when it weighs you - it can randomly add or subtract a few pounds even on the same day but I guess this is to be expected with something that has to be moved around so much. All in all I would say it is good value for money and a great addition to your Wii set up.