I dont use a Blind but when I Hunt on the Ground I make a Blind out of the Surrounding's so it's all Natural and everything blends in. I however did use a Buddys one Season a few times and Not 1 Mature Deer would come anywhere near it, they knew something was'nt right with it.
It seems where I Live and Hunt if you just Trim a few Branches or change the smallest things a Mature Deer will know it and not come by there anymore. And Yes Im Totally Scent Free when I do this. Also I Hunt a-lot of Thick Cover and it's hard ebough to find a place to set up a Stand let alone try and get a Blind in there somewhere. Now I do have Friends that use them for Turkey Hunting with Success.
Im sure they have there places though.
(BP)