I bought a similar Staples chair about 2 years ago - that's about how long it lasted until the metal under the seat actually began to tear. This one is easy to assemble (comes with the allen wrench) and comfortable while working on the computer. Only complaint is the arm rests could be longer and I wish it would lean back further.
everything needed to put chair together was included and easy to work with. all parts fit together well. if arms were marked left & right it would have saved some time & confusion.I give the chair five stars. Larry