Ground blinds are great. I've shot turkey and deer from them. If you are going to leave all the side and back window closed, I'd recommend wearing black or dark clothing. I've always worn camo and it seems the deer always are a little cautious or are looking at the blind funny. I've started doing something and it seems to be working. I open the window behind me also. I always set the blind up near bushes and trees and it seems like the deer don't notice as much with the back window open. I think the between the camo and it not being as dark inside the deer don't see as much that looks odd. I've taken 3 does since doing this and none of them seemed to see me or act like something didn't look right. I have the shoot thru mesh but I usually am using mechanicals so I like to leave the mesh off and I think that tends to make a black hole with the other windows closed. It also will show movement more if you're wearing camo in the dark tent. Try it. I think you'll be surprised.