Map, After setting up and sitting in a Ground Max ground blind while turkey hunting this spring, a doe came in to within 10 yards of the blind. She was not able to detect me as I sat in there dressed all in black, with the screens all rolled down, but she did know something in her woods was there and out of place.
She stuck around for at least 20 mins., being extremely cautious looking around brush at it. If I were deer hunting I would not have had an open shot.
My suggestion would be if you use one, get one thats comfortable for you and that you can draw your bow in without your arm or bow hitting the sides, and set it out at least 2-3 weeks before your hunt so the deer can get used to seeing it there, and so any scent would have disipated.