Took our Mechanical Engineer friend 4 hours to put together, but it’s very sturdy and the kids LOVE it! They are 4 and 6 years old and play with it every day ( it’s been assembled for 2 weeks now). Very happy with the variety of furnishings and thoughtful details on the imprinted photos on the walls that define the rooms. It was a nice surprise to NOT have to put a bunch of stickers on anything, especially since they inevitably end up crooked and peeling down the road. This is an heirloom piece and we are so happy we bought it!