My neighbor purchased this.  (They have 4 daughters) Although it was huge hit with the kids, they kept getting injured.  Seems that the kids would lie down on this and both my neighbor and other mothers in the neighborhood worried that one of the kids would bite their tongue severely.  These moms are not the keep my kid in a bubble types, and the kids have injured themselves on other equipment.  One day after yet another injury it was decided that we would sneak over in the night and put it in our garage.  It is still there.  Perhaps if you supervise the play closely and don't allow the kids to do anything but sit upright on it.....   just thought you should know.