Zach, Micah, and Amelia had an absolute blast zipping along on it! Sunny even tried once with Dad running along beside her.
We had to come in the house after a bit, because Micah was upset that his turn was not every turn.
I am sure it will get a lot of use this Summer. Thankfully, the little ones cannot reach the zipper without the help of someone much taller. Although it dips fairly low while they are on it, the line pops back up without the weight of a rider.