My husband put this together with our son and it took about 30min - 1 hr.  It's been about 3 wks in this Texas heat and still don't have compost, but I know it's on its way.  I like the fact the Yimby is compact and has 2 sides with plenty of space to twirl the whole thing.  I am very happy with its design and will get some compost starter to really get it working.