I've own a 2013 Extended 9 Lounge and a 2017 AIRSTREAM Interstate Tommy Bahama Grand Tour (GT) and a 9 Lounge in the same exact year and color (Black); the AIRSTREAM and the Mercedes-Benz Sprinter 3500 platforms are really well made products, so there is a natural alignment of "solid quality" when combined together. I've logged over 200,000 miles on our 2013 AIRSTREAM without any issues to the Sprinter drive-train, and or the AIRSTREAM interior furniture and such; everything held up just as it should. There is Good-AIRSTREAM Show less