Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I love the concept of this product. Happy with the bottle and trough design. Sadly, I returned this before even using it. The lid will not screw on tight. You can get to just tight. If you turn even a millimeter more, the lid is loose again! If the company fixes this key flaw, this would be a great product.

Great concept... Deal breaker is lid that won't tighten