Do you use a good office chair when programming?

I had one of these generic lean-back + swivel office chairs that needed replacement a couple of years back (the air elevation lock or whatever gave out). I started using a how to adjust office chair seat angle straight-back wooden chair in the meantime (no curves, just right angles) & realized I tended to slouch/fidget/distort my posture way less and was totally OK sitting on a hard surface. Now I am distinctly uncomfortable if I have to sit in one of the soft-bottomed move-in-any-direction things.