Oh my gosh! I bought 2 of these without ever testing them for my computer chair and my husband's chair. These do exactly what they say they will. I was shocked and pleasantly surprised! The Forever Comfy is the most comfortable seat cushion I have ever used. I sit at a computer for about 8 to 10 hours a day. Before I bought this cushion, by the end of the day, I would be hunched over and barely able to walk. This has not been an issue once in the 2 months since I got the Forever Comfy. I highly recommend it and I swear I do not work for "As Seen on TV".