Love them. Get instant feedback and can pattern much easier and go back and look at the historic information much easier as well. It lets me stay out of my hunting areas and keep them pristine. Unethical? I don't consider them unethical but I I GUESS they could be setup in a way along travel corridors to really give yourself a heads up. But it's amazing when I hunt a spot how many of the deer that I know were there aren't on camera whether they skirted it just right or walked around it... it's not as cut and dry as it seems.