I have the Northern Tool version (same thing) that I got for $70. I am very happy with it. For the money it has worked very well for me. I have built several bumpers, but no cages. The only thing I have had kink was thin conduit and exhaust type pipe. The 2 rollers on the end will sometimes put small indentations on the tube, but I have found that putting a thin piece of wood will prevent that. This topic has been covered before, so you could find more info if you do a search. I remember one member here doing a cage with one.