I'm a non-mechanical woman 40+ who would rather go to the dentist than assemble anything requiring tools. But here I am 30 minutes later with a fully assembled desk chair. After reading the last review (arms too close) I only tightened those screws 90% and waited until I'd tried out the finished product. Was able to loosen the arm screws and slide them out as far as allowable (and also moved the seat back out to the farthest possible setting) and found this chair incredibly comfortable. Not thrilled with the headrest but know my husband will like it. This is a surprise for him to replace a totally annoying leather desk chair with pneumatic lift failure. I'm sure he will love it. Especially like that there are so many settings to customize comfort for more than one user. Thanks for the great design Staples!