This product was very easy to build with all the holes pre-drilled correctly and all items labeled with easy to read/find numbering systems. It is quite large and holds lots of storage. Very sturdy. This is a two person activity that will take 8-10 hours to build together. It comes in 4 boxes over 130 pounds each, which I think it could be divided into 8 total boxes to redistribute the weight and make it easier to get into a multi-story house