Mine is okay. I got the taller one. It is a tad taller than I'd like for shooting a bow. I need to squat or kneel and shoot between the openings of each section. If I'd have gotten the shorter one, I'm not sure I could hide my head and shoulders. On a windy day they definitely move around. I think they are about like any other ground setup. You just about need to have a couple places setup beforehand where they are out of the wind and you can grab a seat on something. They are good for turkey hunting.
Overall, it is another tool in the arsenal. Not a single hunting tool that is perfect for "every" situation.