Far superior than any foam roller and its great to stay in one spot and not end up moving all over the place. Much easier on the hands also. Its easy move through the various muscle groups. Normally I would just have stuck to the hamstrings if that was where the problem was but now I start from the back and move down. The one for the back really works and I can feel heat immediately after it, which is obviously the blood starting to flow – always had a tight back from sitting at work all day. Working on my tight hamstring was easy and it freed out in a few days. Also much better for loosening out those tight knots in the calves that most of us runners have. Happy out overall and have recommended to others in my club and some have purchased since I got it.