The chair is easy to assemble. All needed tools (1 allen wrench) are supplied with a clear instruction booklet. The chair is good looking and comfortable. The plastic mesh seat back and head rest are very supportive and allow me to sit for hours comfortably.
I wanted a chair for longer sessions that stayed comfortable and didn't make me sweat. I was a bit leery about the mesh thinking it would be uncomfortable but this chair fits the bill. my only complaint is that the arms don't go a bit lower. My desk has a keyboard surface a bit lower than the desk and the arms are a bit higher than I would like. I'm 5'10" and find it comfortable. the lumbar support works for me.