This set is AMAZING - very big and roomy. Plan on much longer than the specified 10 hours of assembly time, however. It took 2 very handy guys (plus 2 moms sorting the thousands of screws, bolts, etc) over 24 total hours. 

Definitely worth the effort, but a bigger project than expected. 

The set is great quality, but the floors needed some reinforcement. It's fine for small kids, but the assembly requires men to be up in it. One board cracked when my average size Dad walked across. We added reinforcement beams across the bottom of all floors.