Not good for people already in shape
I bought this product a few months ago and honestly I should have listened to some of the reviews. This does not give you a cardio workout if you are already in shape. It does however, work the leg muscles and keeps them toned. I needed for the winter and I will probally be getting rid of it.The quaulty is poor as well. The clock that keeps track of distance etc., never worked from day 1. It is also ver noisy now and it has only been about 3 months.This product is more for people who just need to get moving, not for those who consider themselves inshape. I don't think I have sweated once using it and I rev it up in attempt to make the workout worth it.