The expense is pretty hefty to run those cameras but if you can afford it, the results can be almost unfair... You know how I am always preaching to keep cameras out of bedding or hunting areas. Well with this camera you can break the rule. Put the camera right on the main entrance to the bedding area, or better yet aim it right at the bucks bed. Set it before or during a rain storm to keep from getting scent in there if you can. Set up a battery pack and solar charger and just check your email each day. When the buck is bedded there just move in and set up for the kill on the exit rought.... It really kind of takes the skill factor right out of hunting.
Those cameras are not fair in my opinion. That is why I only use my "regular" cams to profile the bucks in my area; If you know where they bed and your cameras are placed strategically, one can ASSUME a buck beds nearby.
Unfortunately, I think the trail cam market is headed in the direction of these cellular cameras I think you will see the price point come down and people will use them in unethical instances.