My son and my nephew (both 2 years and some change) have had one of these each for about a year. They both occasionally pull it out and giggle hysterically at each other going in and out. How they play with it has changed as they have gotten older... but it's still a hit on a rainy day. It's made well. Some people say it's small... but that's if you as an adult are getting in it... in that case... yes.. it is too small. Leave the tunnel to the little ones.