This chair makes my back hurt. The lower portion pushes your lower back out unnaturally in an attempt to be ergonomic. I actually sliced the mesh horizontally across the lower back to create some slack n the material, which kinda helped but now i have an ugly chair. The headrest also sucks baby bottoms. It pushes your head forward  and is not adjustable in the right dimensions. If it could just be pushed back it would be great but it only tilts up and down. I removed the headrest after 2 minutes. Don't plan on sitting in this chair long either, as the cushion is pretty flimsy. Your butt, back, and neck will hate you. Also, I am moderately tall ( 6'1") so i wish it would raise up a bit higher. When i try to scoot forward toward my desk the armrests jam underneath it 

Pros: none i can think of...maybe price? i dunno
Cons: Bad posture, cheap cushion, doesn't raise high enough.