Got this for our kids when they were 4 & 5 almost 2 years ago. They and all their friends love it. Three other family’s bought one for their houses after seeing how much fun ours was. 
The assembly was tedious to say the least, I read the instructions 4 times before we started putting it together and we still made a couple of mistakes and had to undo part of what we’d done to make sure it was put together right. The instructions didn’t indicate that a ratchet was needed and but it totally helped.
We got the earth tone unit and are happy that it kinda blends in with the grass and fence instead of brightly calling attention to itself.