On arrival, quite surprised by the size, it's true that it's big, and I do not have a very big buttocks, but once well set is very comfortable, the foam is dense, but not hard. I use to play my console has a type of chair seat pan, and all the body weight on the tailbone just exactly, well after 2 or 3 hours of games, no problem.
By cons, good point and bad points, the cover does not come off easily, I see it as a good point, because it contributes to the comfort (fabric stretched over the hole).
I recommend it to anyone who may have small problems at residue of our prehistoric tail)