I got one nearly brand new for $25 off Craigslist, which I think is a steal for the price. At $200 though, there’s some other competitors that I feel would be better.
Honestly, go to an office supply store and try a few chairs. See what’s comfy, but also forces you into a good posture. There’s not really a one size fits all office chair, and $200 goes pretty far if you’re not buying a high end chair (which the Markus is not.)