Prevost/Newell - yes. Been in them - fixed them, listened to owners gripe about them. Even seen them towed.
Spacecraft - no experience. New Horizons - same-o-same-o. If they aren't failing on day one give them a few months and stuff still fails.
oh - just want to add..... I stood on my class A build when the sub floor was put in and followed alongside, in and on it daily in the factory as it was built. Although it wasn't a custom build. Helped catch a few things that could have gone wrong (builders were super happy to fix it). And during the time I had it I still had problems -- some no so related to build quality, some related to house issues, some related to chassis issues.
So -yes - I maintain that every RV has issues. It seems to go with the territory. It shouldn't to the extent that it does lately, but it's there.