The chair is very comfortable.  It needed to be assembled, and could only be put together with the provided Allen Wrench.  I hope it does not fall apart after a while.  The problem with not using real screws is that when they loosen it is difficult to retighten them , and eventually they get stripped and fall out.  I am enjoying using the chair while working at my computer from home during the pandemic quarantine.  Fingers crossed it will stay together!