I got hooked on a full mesh (Back & seat) office chair after using one in a call center environment. This fit the bill perfectly - I can sit comfortably for 3-4+ hours at a time before I need to stand or move around. High quality material, solid base (heavier than I'd expected), I like its rolling ability, it's extremely adjustable, arm rests don't bother me, pretty straight forward levers. The only thing I can't tell is adjusting the tension ("bounciness") of the recline - but I prefer to work with the back locked, so irrelevant to me. Everything else is awesome.
