Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Problematic Propeller

We purchased this boat for our 5 year old sons birthday.. thought it would be a good starter boat for him. He was sooo excited about it. First time using the boat, the propeller dropped off. We fixed it and again it dropped off..again, and again. We spent more time diving for the propeller. We have yet to see the boat "blaze". Very disappointing.. I believe it will be a lovely knick-knack on his bedroom shelf. :0(