Like Cedar said, if you put it and plan on hunting that day or within a day or two, it can be hard, i did that this season because of lack of planning, they still came in but were super skiddish and wouldn't stop looking towards the blind and any movement or change in wind direction made them skirt the blind direction as much as possible.
You need to brush it in really well, which you should anyways, but if you have the opportunity, put it up in advance, a week or longer if you can, and if possible stay out of the area for that amount of time.
Make sure it is set up to give you the most shot opportunity's, i learned that the hard way, its frustrating knowing there is an animal within fifteen yards and you can't open the window or you have brush over that angle.
just a couple thoughts.