My child is 4 years old and he loves this activity set! It is now his favorite! I can see his little brain working and growing as he thinks Haha! We love setting up the new courses and programming the mouse to make it through the course. He is learning patience too and to never give up! If we don't get it right the first time we go back and fix it. It is tons of fun! I received this product for free for review purposes. Opinion is 100% my own.