Very easy to install (although did not come with an instruction manual, but is easy enough to figure how to put it up). I lost the attachment screws within 5 mins, but seems to hold fine by just being jammed into the door frame (you twist the bar and it elongates until it sits firmly in the door frame). The non slip grip handles are very nice, and they don't move away or become asymmetric as you twist the bar to make it longer (in order to fix it in the doorway). Sometimes, while doing pull ups, the bar starts twisting, so it's important to do them from the direction where the twist would result in the bar stretching further rather than shrinking and falling out. This is slightly annoying, but not a major problem. I am 10st, and it holds me no problem, but I am not sure that it would hold someone much heavier than that.