I have taken many of deer from a ground blind including a nice 120" 8 pointer which was sniffing the brush tied to the side of the blind. I will only usea double bull blind because I have had 4 ameri-steps and they all broke on me. Little tip always keep the sun at your back because you wont be able to see through the camo mesh that well if it is hitting the side of the blind your lookin through. Another point you should look at in popup blinds is get a carbon lined one so that you have some scent containment.

Good luck

Steve