I have a 2018 Reflection 337RLS and so far not any major issues, only a couple of minor ones. However we are headed out on a 2 month trip with about 6K miles in a few days and I expect it to perform as well as the '05 Montana we traded in. So far we have used it for 18 days. Almost everything on this 5th is supplied by Lippert or one of the companies they own, frame, baggage doors, furniture. The Frig is a Norcold, the water heater and stove is Atwood. People have reported problems with all of it, more so than those who praise it. There is a Facebook page for the Grand Design products. Ask me again in mid Oct. how I like it.