"The price and the little robot compelled me to purchase this small add-on set. The three main builds are all clever and attractive. The robot is over-the-top cute; we love how the arms are built and how they swivel on a ball joint. The parrot is very cleverly designed prompting me to wonder at the joys of having a job designing for Lego. And the gocart is great, too. The builds and the parts got my creative juices flowing, and I was coming up with new ideas before we were finished with these three easy builds. I bought this (in addition to other Lego products) for my grandson's fourth birthday. He helps find pieces, loves to put wheels together and onto the vehicles, and generally helps in all sorts of ways. I'm sure that introducing him to the smaller Lego pieces at this age will well prepare him for many hours of Lego creativity as he gets older."