Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Perfect Leg Cast and Bandage Protector

I suffer from varicose ulcers on my leg and have to wear Unna Boots for treatment of the same . I searched randomly for a cast protector at Amazon . I selected this product because of good reviews . I was not disappointed . It is close to perfect , the diaphram wont let a drop of water soak your cast . Very easy to use , reliable , durable , slide on system with diaphram . Dries up very fast .