The instructions to build it were very simple, although building it alone is mildly difficult; you should plan on having a 2nd person to help. The quality seems pretty good, the machine is sturdy, and held up to the 480lbs I threw on it for my first work out. The hack squat setting is AMAZING and works flawlessly. My only complaint is that the Leg press doesn't allow for 100% ROM if you're short; it ends me just shy of full ROM as I'm 5'5. Overall I'm very happy with the equipment for its price ...