The concept is very good, however, I can’t use it but that’s down to the problems I have with my leg. I have very little muscle in my left leg and find I needed extra padding around my thigh and on my knee. It is quite heavy to pick up so the use of the handle is a must. Defeats the object really. I can’t put weight on my ankle for six weeks but due to the weight and uncomfortable nature I won’t be using it.