I have one I was given. When it works, it makes the nicest, fluffiest windrows you ever saw. You can get into a corner, double row, push 3 or 4 together if you want. Pulls easy, doesn't take much power to run. Now the bad part- that power stripper gets 1 stinkin' stem of hay caught on it and before long you've got a round bale forming on the stripper! If it gets to the end bearing it'll force hay into the bearing area and jam it up tight.
Wonderful idea and design if you have one that hasn't been beat like mine.