I like mine a lot, too! One of the plusses is the fact you don't need a 'key' for the hitch pin, just the rails on the hitch do the turning...which means you can hookup and tow any 5th wheel with a king pin . Some kingpins require an adapter on the hitch's head, but it will still hook up with out a key.
Just had mine since spring and have about 5,000 miles on it.
It is heavy duty :) I bought a hoist from Harbor Freight that I put in the garage rafters to lift it out with.
Demco customer service has been great...
Tim