Perfect for our 3 yr old twin girls. We live in Long Island NY and don’t have a large backyard so it’s perfect fit. Also the multi sensory areas are perfect. A kitchen, a slide, the 2 story house, and multiple entrances and exits, keep the girls active.
We did not have any prior building experience, so I would suggest you have multiple days to build it. It took us around 4 days, of course we had 2 little ones running around so that was difficult but it is a lot of pieces and work. 
Overall extremely happy with it, and the girls play on it everyday. 
I posted our building journey on instagram and so many people have reached out asking for this house, and they raved about how amazing it looked.
Great function, great aesthetic design, and just overall super fun.