We bought the Cozy Truck for our one-year-old grandson's birthday, and his eyes lit up when we gave it to him. We couldn't get him out of it. It took very little time to assemble thanks to the clear instructions. The only drawback is the fit of some pieces. In our case, the fit of the door prevents the optional lock from keeping the door closed. As a result our grandson can easily push the door open when he's inside. To keep him safe we had to improvise by putting the lock on the outside of the door. Not a perfect solution, but we're hoping it works.