I've been using the chair for three months now: 
The style and size is great. It's more of a compact/small chair and looks very stylish, which is what I was looking for. Assembly was easy for me. The armrests lift but do not lock in place so you can either have them up or down, no in between or pulling forward. One of the armrests started to flatten at about 1 month. The seat is now starting to do so. I work long hours and use the chair 8-10 h/day - 6 days a week.  I would only recommend this chair for light use.