I have the Ninja belt. Tightening and loosening it took a little getting used to. You can't tell when it's in the best spot like you can with a belt with holes. Since my weight is pretty consistent, I don't need to micro adjust my belt. Pros: it works like a belt and is infinitely adjustable. It may be the best belt for guitarists who want to minimize or possibly eliminate buckle rash on the backs of their guitars. Cons: the webbing gets crushed in the back center after a few uses. I wonder just how badly out of shape it will get since the webbing is not very heavy. It takes 2 hands to open (I can open my leather belt with one hand). A little pricey for what it is.