i'm 5'7" and the chair isn't too big or wide for me. now my arms/elbows aren't splayed out uncomfortably at a weird angle like my other more expensive chair. only complaint is that the head rest is too short and functions more like a neck rest. no wonder this chair has almost 5K reviews as of 10/2019. it's cheap and very good/comfortable! ps -- assembly is rather easy. took me about half an hour. the instructions and parts are all labeled appropriately so you can't mess it up.
I really liked it in the beginning but after a few days the cushion in the front of the seat started to come apart and now im not sure how long itll last. I hope this gets resolved otherwise its a nice chair
The chair had good instructions and was easy to assemble. I do wish it had a seat depth adjustment of more than 1/2 inch and I wish I could lock the back in more than the two positions offered. It does roll nicely and is pretty comfortable.