Bought this set for my 9 year old daughter for xmas, to say she is pleased with it would be a massive understatement. She hasn't put it down since xmas day and has already built the main models and coded them and has now moved on to the creative canvas on the app, she has also managed to work out how to use the Lego boost motors and app and built a Ferris wheel for her Lego figures using pieces from other sets. Some parts of the builds could be quite difficult for a novice builder but as my daughter has been building Lego friends sets since she was 4 years old she had no problem. Overall I'm very impressed with the Lego boost set my daughter loves it and enjoys building Lego whilst also improving her ICT skills by coding on the app. Well done Lego on another great fun but also educational set