Chair Recommendations

[kicken]

So it's about time for a new office chair. My current one is fairly beat up and I think it's poor state might be contributing to some knee pains I've been having lately. It doesn't sit at the right height because the hydraulic is busted and I had to improvise a new base after the casters broke on it which gets in the way and is harder to roll around on.

 

Rather than go get a cheap chair from an office store I figured I'd look for something that might be better quality and last longer. As such I'd like to ask for any recommendations you all have for chairs you may have bought and found to be comfortable and reliable. Let me know any thoughts you have.