We checked ours every year and it was fine. Last year noticed that some of the sealant was starting to age. Took it to Winnie and they resealed it. Had some clear coat peeling above the entry door, so while it was there they took it over to CDI ( that's who paints there coaches). They fixed the clear coat no charge, and the CDI manager met us when we picked it up to see if we were happy with the work. Looked brand new, I asked what we owed, and he said no charge! He said they probably didn't prep it well enough.
Pretty good service on a 10 year old coach!