I put this shed together myself in one days time with no one else helping me. The only thing I did not like about the assembly was how tough it was to get the wall tabs into the floor slots. I ended up using a cut 2x6 and my 5 lb hammer to pound the walls in from the top.. This took me the longest time. Everything else was a pleasure to assemble..plenty of hardware to boot. It was installed on a level concrete surface however I did end up having to shim the left front and right rear just slightly. ((hopefully it holds up over time))