stuff needing repair

I have a class B and really want a class A and I know most folks just post problems but are these things constantly a problem.

I am very handy and mechanically inclined but I read all these stories about things breaking down and leaving people in a mess. Kind of leaves me gunshy.

So show me some love, can any tell me they have taken multiple long trips without any failures? I know its somewhat determined by Preventative maintenance but I keep getting the impression its one thing after another on trips.

I get about a month off each year and would like to spend it vacationing not repairing things.

Thanks

Bob