It does what it says, keeps weight off your lower back, and keeps your butt a little cooler while doing it.
Seat does feel good on your butt, but takes a little getting used to. I actually think it is too small, and as such rests in the middle of the chair, and unless you have it set perfectly in the middle one side of your butt will hang off oddly. The cover is nice and helps protect the cushion. It does keep your butt a little cooler too, on top of really taking weight off your lower back.
Rating: 4 stars