I'm a very experienced DIYer / Engineer and this took a couple of days to build. 2-3 hours is utterly untrue, I have built a smaller version of this type before and kinda knew what I was getting into. The instructions on the website which I printed and studied before the delivery do not match the instructions in the box. The instructions are vague enough to leave some doubt and a series of mistakes were made which need removing and replacing parts in correct place. Youj also need to budget for a floor, I used OSB 18mm. Good points: It's cheap, really cheap. Bad points: made to a cost (really cheap), instructions are poor, as secure as a crisp packet.