The chair has a lot of play in the seat.Everything it tightened up but seat has a lot of play.Chair is rated for up to 500lbs.Supposed to have heavy duty wheels.Dose not tool as easy As I thought A chair like this should be.Think I may send it back.Thought it would be great chair.

Big! See photo next to secretarial chair. I like that. Very sturdy feel. Not very soft, but you can add a cushion per preference. I like the vibration to the lumbar area. Not looking for it but I thought it is a cute feature. For a big guy it's still big but keeps armrests from poking my sides. The back rest locks vertical but not in recline positions. The spring is very hefty, though and provides good support. The armrests are fixed, which is fine because I can lean on them to reposition once in a while. Only dissapointments: the paint in an armrest had tiny nicks probably from vibration and rubbing inside the box, and the battery pocket in the underside of the seat was stapled tight and twisted being unusable. Will have to unstaple to fix. Assembly was easy. Only recommendation: do not tighten the seat/back/armrests screws be for aligning everything. OT says so in the directions but I missed it initially and had to loosen again. All in all good value forbthe money.

the chair is for my wife for Christmas gift

Straight trash garbage exactly what I expect from a company like Wayfair