I bought this toy for my 4 1/2 year old son who loves to build and loves forts We purchased 2 sets as one set is not enough to make a structure big enough for 2 to play. This toy is ok. My kids, now 5 and 3, like playing with it, but still need an adult to build it for them and to continually be ready to fix any problem areas. We don't pull it out very often though. We find that by the time we finally build a structure, the kids play in for a few minutes and then are ready to move onto something else. Great idea, but not as great as I had hoped.