I've had great success with it. I removed the foot box from hammock (no longer a Wbbb clone) and it works great. I have one at either end and it's awesome. The one at the head end really helps relieve my shoulder pain. And then the calf ridge has all but vanished at the footend. No more problems with my UQ sealing to the hammock either. Pricey but at $12 worth fabric I'm still under the cost of an eno of something similar not mention the comfort factor.