My 5-year old daughter loved the items in her Wonder Crate. They were age-appropriate and challenging, but not too frustrating. The puzzle ball is a great toy to keep her busy for a long car trip or waiting at the doctor's office and encourages problem solving. The game was fast pace and fun while she was learning math skills (but didn’t even know it). The book explained a growth mindset in terms that she understood and there was even a section for parents. The online lesson was a great way to reinforce the concepts in the book and the lunch box notes are a nice daily reminder for her. I feel like we've both learned a lot and have gotten our money's worth.