I guess it would work if it was big enough to go around my leg!
I am happy with this purchase. I think for the price I paid, it was a good investment. I've seen some reviews complaining that it's like riding a tricycle. I didn't necessarily think so, but it's true that it's like a miniature version of a gym elliptical (which should be obvious from the size of this thing). I'm 5'5", though, so maybe for people who are 6' or something it might be too small.
I like how I can use this while sitting down or standing up. I was originally considering putting it under my work desk, but it is a bit too big (length-wise, especially) to fit under my desk since I have a lot of cords down there for my computers, etc.