Nice LEGO kit. I bought this for a 7 year old girl and she needed minor help in assembly. There's a three or four places where the instructions/diagrams are confusion (sorry don't exactly but it was the brown pieces in the tree). She needed help and supervision. We worked on it for about 30 minutes a day or so as that's about what a kids attention can hold for these intricate projects. In the end it was build correctly, but don't expect them to do it in one sitting. Also, we ended up with extra pieces notably the small button-sized flowers. But overall no issues with the final tree house. She's still playing with it after 4 months.