I've only used them once. We layed out in the snow during the late season along the Missouri. With no wind, the birds kept surprising us from behind. That meant we had to literally roll out of the chairs and pop up, which was a pain in the @$$. And seeing through the "slots" in the decoy was difficult, and the sound of the calls were muffled. We ended up laying out of the chairs and I haven't used one since.