Pretty easy and quick to assemble. However, the wooden top does NOT have pre-drilled holes so I needed to use my drill. If you have a drill, no biggie. If you do not, I imagine it would be difficult and frustrating to do by hand. 

We ordered two to sit on each side of our couch. The colors of the wood on each piece are different enough to not be identical, but not so different that I freaked out and returned or moved one to another room. Small differences are to be expected but one is clearly more grey-brown while the other is more dark brown. If you plan on buying more than 1 and want the pieces to be identical, these might not be the right side tables for you.