nice chair but it wasn't as comfortable as I thought it would be for my back. I've had lots of back issues and need the support but it's almost too hard for my back. As far as construction and durability it's good and I like you can take the headrest off.
The chair feels sturdy and well built. Maybe it's because I'm used to sitting on a rock (aka an Ikea chair) but this chair takes some getting used to. I also feel like it leans back to far even when locked so it doesn't encourage you to sit up straight. The back of the chair should allow you to pull it more forward. It looks great though is super sturdy wheels roll smoothly and I love the blue mesh. Hopefully I'll get used to it.
I am glued to my desk from 8 am to 3 am. And developed pain on my right rotating cup for constant use of mouse and not having your arm rested evenly between the chair and desk. After using this chair for a week I noticed a relieved on my shoulder because I can now lay my arm on the arm rest that is adjustable to the height of my desk. No more constained muscle and the circulation of my legs are better.