Will it build muscles? Lose belly fat? Get you toned? What body parts does it workout? Everything and anything.
Its part of cardio. So you will lose belly fat and tone. But if I were you I would start out with 100 and work your way up:)
yes, yes, yes, almost all, yes ... and you will be able to fall asleep very easy x3
I would think it would tone your legs a ton, try it and find out c: