Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredibly frustrating toy

This marble maze looks so fun and cute. However, it's actually useless and incredibly frustrating. The pieces don't fit together well and tend to fall over when you look at them--much less when you try to roll a marble through them. Also, the configurations pictured on the box don't work at all. Either our giraffe is missing a critical piece, or the wood planks are supposed to magically levitate. Ugh, I'm returning this immediately.