Since most of the responses have nothing to do with the OP question, I'll chime in with a response only half way appropriate... I've been towing for years now with a Ram 2500 8' bed and Andersen Ultimate goose neck attached hitch. So, I can tick the Ram and Andersen boxes and ignore the 6.5 bed and puck mount. :)
I love it. No negatives worth mentioning. The absolute only negative I can think of (a minor nit) is that I have to run the front jacks further up and down to hitch up than I did with the traditional hitch.
Oh, and I'm surprised you didn't get "Andersen sucks. You can't put my 5 padlocks on it and prevent someone from unhooking it". :)