Howard, the Companion is a great tool!! It gives you a way to use your truck bed when not enjoying your Montana with very little effort to remove the hitch. The unit comes apart in 2 large pieces and there are large rubber bumpers where the parts mate significantly reducing chucking.
My office partner recently bought a 5er and opted for the Companion making three of the group that camps regularly using a B&W mating system.
Just remember to tighten that bolt where the hitch mates to the bed's receiver.