My 20 month old loved her big gift from Santa. It's pretty big, comes off a truck in 2 very large boxes. Assembly was not as challenging as I had though, maybe  a couple of hours if you're pretty good with basic tools and directions. Power drill/driver is a necessity. I have it on a brick surface, and will probably put some artificial grass rug under it so she can crawl around without getting too dirty. Someone has warned me that the plastic will get very hot in the summer FL sun, so maybe also some sort of shade will need to be put up.