I use mine all the time, I love them. I started using them for shooting 3D archery but now I wouldn't hunt without them. I wear them over my outermost layer. Bino's are always handy and I know right where they are. I carry fairly large heavy bino's when I hunt and they distribute the weight nicely. I never feel them like I did when I just used a strap. Even in the truck they are great, no looking on the dash and seat for where the bino's went to and they have never interfered at all with my shooting.
One warning, don't jump with them on, they'll come up and whack you in the nose, besides that I wouldn't be without them.
One thing I did was put split rings (key chain rings) on each pair of my bino's, so with a couple quick snaps I can change which pair is on the bino buddies, or remove them if I don't want the bino buddies that day.