A good successful long term relationship with any motor home requires two basic ingredients.
1) The owner is a handyman at home and is not afraid to utilize his talents with his motor home.
2) The owner buys a motor home with a decent reputation for quality construction, primarily the structure of the house and interior cabinetry, and general workmanship.
Components purchased by the RV manufacture such as windows, vents, and appliances, are identical across better and lesser brands. It is the quality of workmanship in their installation and their plumbing and electrical practices, hence the need for a handyman to keep it all working right through the years. Some RV workmanship can get so bad that a handyman is needed all the time. A quality built rig will need less TLC along the way.
My personal experience with our 2007 Phoenix Cruiser that we bought new in 2007......it has required very little TLC, needing a tightening of a screw here and there, but over-all has not required much attention. I have also addressed a couple of inherent problems, for example our microwave oven would always get loose from road vibration which I resolved through a modification to the original installation.
(Details With Pictures Here)But....our rig is also my hobby so I am doing many things to "improve" it to make to work even better for us. So my handyman skills are applied much more often for improvement projects, not repair projects.