The chair looks great, but the arms are not very comfortable. You can feel the inner structure's sharp corners inside, and it will almost certainly be the first thing to wear out. The back slides into place with metal brackets, but there's no way to actually secure it, so it has slipped out a couple times already.
Update: after only a month of using this chair, it's too uncomfortable to sit in for more than a moment. It broke down extremely fast, as I previously predicted. If you plan to use it occasionally, it's perfectly fine but nothing special. If you plan to regularly use it, buy something else. Your back will thank you.