Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good but the Disc Traction Belt is better

I bought this and was not too happy with the effect.* First of all it DOES stretch your knees and ankles. How could it not? I don't need traction in my knees or ankles. Besides it is not too comfortable gripping around my ankles.* Second, I need to decompress while lying on my stomach so I have a natural arch in my lumbar spine. The Lynx does not allow my to do this. If I decompress on my back, and especially with my lumbar spine flat (not arched) I tear my discs apart.So for $70.00 LESS, I bought the Disc-Traction belt. It weight a couple ounces and folds up into the size of my hand. I can decompress in any position, it is comfortable, and does not pull on my ankles or knees.