Bought this chair for my son to replace an old office chair that he was using at his desk for computer use and home work.  He helped look at the reviews and picked this one.  It must have been going for a non-ergonomic chair to this chair that had his back hurting at first - maybe sitting up straight which is probably a good thing.  But he was fine after a few days and says it is comfortable. He suggested the 4 stars since he had to get used to it and the assembly was a little challenging.  He has had it for a month but we have not noticed any tears, maybe just one spot in the middle of the seat.  The mesh areas do attract crumbs...