Relatively easy to put together, would have been easier with 2 people took me the better part of a day but that was with quite a few breaks as it was almost 90° when I was doing it and I’m in my 50’s . 
My only complaint is the hydrolic hinges seem to be too powerful, the lid is not staying shut. I have weighted things on it right now hoping it will let some of the gas out and stay shut over time. Or I might have rig up some sort of latch to keep it closed.  But it works for what I wanted.