Love the floor plan, love the MH. As with anything I have owned I will always find something wrong at some time.
My advice is to test everything yourself right after you get it. I mean EVERYTHING, Outside entertainment, the Ice maker, the tank levels, all of the DVD players, EVERYTHING. Then call the dealership and get an appointment to get it all taken care of. OH yeah, the outside SAT and CABLE connections also.
If you do a search you can find Upgrades people have made to this platform that might give you some ideas.
I added a remotely operated dump valve for the fwd Black tanks and also added a macerator for the whole system.