I like this product and it does help alleviate the lower back & siatic nerve pain I was experiencing having to do teletherapy from a home office instead of working in a classroom. I do wish, however, that the inner cushion was a bit firmer. I keep having to shift my feet a bit as they tend to drift apart. Otherwise, I’’m very happy with the way it provides the proper alignment to avoid too much pressure from my office chair on the backs of my legs. Nice having a 2nd cover too!See full review