The husband and I have been using these for a month now and they are holding up well.  Easy to use and the straps are strong.  I took off one star for the carabiner-style clips that attach the band to the handles.  They have sharp metal bits around the hinge area and anywhere the metal is cut - as if they weren't polished or finished properly.  They cut my finger tips every time I change bands and have to be careful not to touch anywhere near the cut metal.  I imagine if they used better quality carabiners, the price would go up dramatically since the metal is probably the most expensive component of this set, so for what it is, I'm pleased with this brand.  It's a good value for everything you get.