I have a 19 on order but I would have preferred to get the 5.0 because, generally speaking, it is easier to tow a 5th wheel trailer in adverse conditions. I also think that the 5.0 is a better looking trailer in that it is a bit narrower, has a more streamlined look, and has a great layout. The problem is that we almost always have our 2 sea kayaks, or our canoe, on the tow vehicle when we go camping. This was the deciding factor that essentally forced us to go with the 19. Another point is that a truck would not be a good vehicle for my other interests, so I would have to buy a truck just to tow the trailer.