Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Toy!

We bought this toy for my son's 2nd birthday. At first he didn't seem to be too interested, so eventually we packed it up and put it away. Then a couple of weeks ago (at 2 1/2) we decided to give it another try and now he loves it! We have bought additional accessories and he loves the construction site and to make the fire engine go thru the fire station. We plan on getting him the elevation series for xmas. He is now old enough to put the track together himself (which he loves) and put the train back on the track. We arer always changing the design and we love to play with him. He has also been inviting his friends over to play and they love crashing their trains and just missing each other. It's durable and great for keeping the little ones happy. The only thing I wish is that the accessorie sites that you buy actually did something mechanical or that the remote control trains went backward as well as forward. All in all it's pretty great!