We have a few different generations of the Healthy Horse Hay Feeders for our horses and have been using them for several years now. We are very pleased with their durability and efficiency. The only waste seen now is what blows away as I cut the strings on the bale, to load the feeder. It is great to see the horses using their bodies and stretching their top-lines down to eat out of the feeder. Our horses look fit and fabulous with no signs of the classic winter hay belly. Many thanks to Bob Drury and the Healthy Horse Feeders! Feel free to contact me if you are interested in using this system yourself or if you have any questions...