Had it work but more times than not - no
Last time i tried i was on a buddies 40 - i had run of place and there was a toad on it. I grunted in rut - i hear deer running hard but he is circling me. As soon as he got my wind - snorted and run off. Never saw him
I would rather use it now as a last resort if i know he about gone than just blind doing it - but if it was wide open set up or not good setting - would not then either