Instruct: Classify a given review into positive or negative sentiment.
Query: Good Idea, BAD Execution

My son received this toy when he was 5 years old. I'm proud to say that I have a boy who loves to build things on his own so at first glance he LOVED the idea of being able to build his own robot. With minimal help he was able to build a few of the creations on his own. He really enjoyed this toy. That being said this robot only moves forward and backwards with no control over the head or arms. It has many pieces that fit together rather tightly and it was difficult for my son to take the pieces apart when he wanted to make something new. Truthfully, I had to use so much force to separate the blocks that some of them have little stress cracks in them. Also when the Robot is built and on the move, the wheels tended to fall off. It was a good gift but unfortunately it will only provide minimal entertainment value and it isn't durable enough to last more than a few months.