@kaiservenom i have that exact chair. Had it for years. Wouldn't know what else to recommend. It's an extremely good chair.
I'll make the effort to expand my budget and get the Aereon then. I know it's a good chair but way too expensive for me. But if it's worth it, then so be it.
Yeah, I've heard TFM say that (about spending good money on shoes, chair and bed). It's true.
I'm currently using a metallic chair that folds, like the ones you find in conferences. It's been 7 years and my back can't continue.
I will look into getting an Aereon.