I have been using the Demco setup including the Deflector since Jan. 2010. No problems.
My observations, Deflector is heavy to assemble the 3 sections. Deflector screws need some loctite, they tend to loosen up. The forward slopping deflector does a good job of keeping the debris from hitting the car.
2006 Winnebago Adventurer 38J
2010 GMC Terrain, Demco: Base plate, Excalibar II tow bar, and Sentry Deflector.