My 3 yr old and 7 yr old sons are having a blast with these. My living room floor is now lava and they are successfully getting through their "obby" most of the time lol. They are having a lot of fun and we just set them up 15 mins ago :) Mommy even made it through the lava obby. I highly recommend these, they seem sturdy and like they will last through lots of play. I also suspect the kids will not get tired of these fast and will get much use out of them!