I have had the heavy resistance band (red) for over three years now and love it. I am in the Marine Corps and I travel a lot. I have other bands and this is the only one I use. My Marines started using it and they love it as well. With the one band I work chest, shoulders, back, biceps, triceps, and legs. I have read other reviews that state this band is too short and not versatile. I completely disagree; I like the short length because it offers more consistent resistance than single bands and it allows me to do exercises I could not do with longer bands. A little imagination is required but this band is a complete gym. I do recommend wearing gloves if you use it a lot as it can cause blisters. I am ordering a new band today as my old one finally snapped. I think three years of use in austere environments like Thailand, Japan, Philippines, Korea and Afghanistan is pretty good.