I love our 360 PDEK. Only major issue we had is the fresh water tank fell out, FR sent a tech down to replace the tank, framing and water lines. Our main A/C quit last spring and Dometic sent a mobile tech to replace it under warranty. Other than that it has been a great unit.
I did open up the walls in the basement and shortened up the heater ducts and was able to move the walls back to create more storage. The wife removed one of the recliners to make it easier to get out to the deck.
It PDEK draws a good bit of attention at the campgrounds, get ready to answer questions on its layout. One last thing, ad some light under the deck, we had a teenager crack his head open on the edge of the deck while cutting through our campsite at night. Said he didn't see the deck while running around with a friend. We have rope lights on the railing now.
Good luck and enjoy your new PDEK.