Welcome to the forum its a great place to get your questions answered. I don't believe all RVs are pieces of carp, with that said what you end up with somewhat depends on the due diligence of the buyer. use the search section and pull up PDIs don't get rushed and test everything even if the dealer assures you it works this includes slides stabilizers eat everything. Then camp for a couple of days close to the dealer and continue to test things.
Jake my sidekick (yellow Lab)
2017 RAM 2500 CC 4X4 Cummins Diesel
2016 Flagstaff 26 FKWS
AF&AM & El Korah Shrine of Idaho