This was really enjoyable for the kids (and me) to play with. Good instructions to start you off and, once you master the basics of how to ensure the track runs down, the variations are limitless. This is a really big set with loads of pieces so great fun to play with.
The first toys all my 6 year old son's friends look for when they come over. My son uses it over and over. Expensive but very well constructed and durable.