I ordered one from the gentleman in Oklahoma City. I am very pleased with it. Took my girls quite awhile to learn to use it, but they are now pros. My meat chickens, on the other hand, don't have the right body type to use it. They must cooperate. One chicken cannot stand on the treadle and feed without falling forward due to its heavy breast. If one chicken stands on the treadle, another can feed. This is not going well. The layers do great, though. This unit is designed to be mounted through the back to something very solid, such as a coop wall. Mine is freestanding, and after some trial and error, I have weighted the back edge of it down with a small pile of bricks.