Ugh! I took our twins to the "open gym" time today. They are almost 18 months, and it was frustrating to me that online it's listed as appropriate for 1-5 year olds. What?! Our kids are still learning to climb into play cars and don't even push them with their feet yet. All they had available was an open, full-sized gym with 2 basketballs, several ride-on toys, and ... well... that was it. Lame, lame. We spent about 10 minutes there, and that was after we got creative. Booo... thumbs down unless you have older kids who just want to run around, ride trikes, and the like.