it feels like riding on a cloud. I will never ride without one. If it helps the horses back even a fraction of the amount it helps mine, it is worth it. I am the only one that makes it through a 3 hour hunter pace without getting an achy back-- and I am the only one that sports an ogilvy. I own more HP covers than I do horses-- I just use the same MF inserts and switch covers when I want a different color combo. I also have converted entirely to their baby pads. They don’t shift and are so soft on the inside for the horses back. Once I started riding in them, I have not rode in anything else since.
I agree with others about looking in FB groups. They go really fast, and even if you have to pay pretty much what they cost new, keep in mind you wont have to pay the outrageous shipping from Canada. I have been using their products for I would say 4-5 years, and all things are still in like new condition, but I do take good care of my things. From what I have heard, they seem to be pretty good about replacing broken or damaged items, though.