We had a 39 foot 2007 Holiday Rambler Neptune (made by Monaco Corp.) that we bought brand new. We had it for 3 years and almost 30k miles. The first summer we took it to the dealer about ten times, then took it to the Oregon service center. Then that winter we took it to the service center in Wildwood Fl. The next summer to the factory twice to see if we could resolve the rough ride. We had the coach weighed and the air ride suspension adjusted five times. It rode so rough that I had to keep the speed to less than 65, it would knock the one piece windshield loose when it slammed at the expansion joints on the bridge overpasses. Cracked the fiberglass nose cap. It also had terrible brakes. I thought it was very dangerous to drive. I always pictured the microwave and other heavy appliances flying into us as we slammed into something because we could not stop, the brakes would just slow her down. The 5.9 Cummins diesel really had to work hard to push it, very under powered. It did have a nice Onan diesel generator and washer dryer that the wife liked. About that time Monaco Corp. declared bankruptcy and the courts let them off of hook on all their ongoing warranty claims. Monaco came back a few months latter as Monaco Ltd. and started making the same junk coaches, just abandoned their previous customers. Just glad I financed it a 100% because I had to do a voluntary repossession and just gave it back to the bank to get out from under it, cause I sure couldn't sell it. Nice looking piece of junk.