I've used the Renzo's Decoys and like how light and easy it is to put in my folding seat(like a stadium seat).
While I was hunting with a buddy it blew over and a minute later the wind came from the other direction and blew it back up just as he looked in it's direction and scared my buddy, but he didn't soil his pants ;-)))
It works well if the snow is 'firm' enough or the ground isn't frozen. It is very life like even close up.