nefe_lpmk wroteI tried searching a while back for a good office chair.
At the end I got the Noble chairs Hero.
It's above average in comfort and ergonomics, better than most offering (cost me 450$).
We have Herman Miller Aeron chairs at work, which costs ~1000$.
I would sit on them for 11-12 hours straight and wouldn't feel any single discomfort or pain, it's like sitting on nothing.
If you have money to spend, get that, else maybe look for a cheaper brand with similar design style (mesh) and let us know if you find any.
How long have you had it, does it wear out over time?