They are great for horses for sensitive feet but they are expensive and can’t be used all the time as the foot can rot. I use them with race horses. Personally I would use a good supplement, a hoof harder and shoe traditionally
My friend has used them on her horse who has very sensitive feet, and they did cross country/show jumping and she said she loved them! There are no nails or anything going through the outer hoof wall so her horse was fine with them. Im pretty sure her only complaint was they don't always stay on very well, even more so in humid climate and wet ground.