I can see ONE big difference with a regular RV service center and a Prevost RV service center. We are lucky that our coaches are 'buses' as there are thousands and thousands sold across the country yearly and in operation daily.
I have never had to wait on anything nor have had to change my service request date. I'm not saying it would never happen, it just hasn't happened yet. When I call for service (oil change, lube or chassis issue), the day I have always requested was available. Now, I do give myself a couple of week window so maybe that's enough time for the shop too.
A Prevost shop caters to seated buses and Entertainer bus fleets. Those buses need to get back on the road ASAP. Our buses are made for 'ease of exchange' of parts. They can pop out a CAC (charge air cooler) or radiator easily as the radiator grill opens and swings next to the rear wheels. We have a side door to the engine area on the passenger side for ease of access.
It seems that a tech that is assigned to a bus stays with that bus his whole shift then given to the next guy as they run two complete shifts (7am-1am). I'm impressed with their dedication to get the job done quickly.
That has been my experience so far.
And, I wish I was a DIY'er but with today's electronics and sophistication, I'm at the mercy of a good shop. A 'house' item that goes array will not stop the coach from working. I'm a fanatic on the chassis maintenance side as I don't want a breakdown ever, if possible.
I will have my 4 engine batteries changed at 5 yrs along with the generator battery. The tires will get changed out at 6 yrs. All of the engine belts will get changed at 50,000 miles (currently 38,000 miles).
Safe travels,
MM.