My first cushion for my office chair.
I got this for my office chair which I just could not believe had a flat seat cushion after less than two weeks of use.  I was not able to sit long on the chair anymore.  My tailbone pretty much was up against the plastic of the chair.  So I did quite a bit of research on amazon and liked the technology behind this Wondergel Extreme Cushion.  I am 5' 11" and weigh 160lbs and it supports me just fine.  I am not IN LOVE with this cushion, it's just OK to me which is why I gave it a 3 star rating.  I can sit longer on my chair for sure, but I don't have a point of reference compared other cushions that also got very good ratings on Amazon.  Although this product seems to work as advertised, it is expensive compared to other cushions with 4 star rating.  My main reason for buying a more expensive product was because I did not have time to "experiment" with other cushions and we've all heard the phrase "you get what you pay for" so I opted for the more expensive cushion!
Rating: 3 stars