Instruct: Classify Amazon reviews into positive or negative sentiment
Query: disappointed in umbrella net

I was disappointed in this product, because:1. it did not reach the ground with the umbrella up, so the mosquitos came in underneath.2. the zipper did not reach ground, and created a significant tripping hazard, as well as making it extremely difficult to get in/out while carrying plates/food.3. it cut off all air flow, so it was unbearably hot inside.