As always when advertising, there is an element of bs with the ad. I bought one along with my partner two years ago. We are old men in our 70's that enjoy shooting sage rats and rockchucks. We shoot rats are varying distances, but try to shoot chucks at 200+ yards to keep it interesting.
First off, it is not as good as a bench rest and should not be advertised as such. One of the things I like about the setup, is being able to balance the gun in the fieldpod whether it is a heavy barrel or sporter.
Another great thing for us, is we can carry the FieldPod into areas where we would not have a rest available to make 200-400 yards shots. It is not rock solid, but much better than anything else we have tried.
MY pal has shot sage rats at 300 yards with the rest, and I have shot chucks(4) at 375 yards.
I will say, it will appeal to varmint hunters that have to move and are taking shots out past 200 yards. We practiced using ours so when we went to the field, we were prepared.
I think it is an excellent tool, which may not fit each style of shooters, but certainly makes the equation on my side when shooting chucks.