We are very happy with this obstacle course for our very active 3 year old son. He really enjoyed changing the configuration and beamed with pride every time he got through his new courses. I really love how bright and colorful they are. They are very sturdy and durable. It has never toppled or tipped over when my son lost his balance. It also held me up just fine without feeling like it would collapse or cave in. I really appreciate the rubber grips for his feet as well as on the base. We set them up on a slick hardwood floor. And they rarely slide and only just a smidge if so. They stack and store pretty easily as well. Really pleased with this purchase!