Out of all of the options out there I always knew I wanted a class A coach.  Since I prefer to wrench on Ford's the chassis had to be a Ford.
When I discovered, while researching class A's, that Winnebago Inc. makes all electrical schematics, plumbing and construction diagrams, paint codes, part indexs, you name it .. everything available at no charge online I knew our coach was going to be a Winnebago.
Now the proud owner of a 95 Vectra RA that I found in PHX on Craigslist.  When purchased 47k on the chassis.  Banks power pack yadda yadda yadda.  Could not be happier.
;)
Do your research.  Go rent a coach and spend a weekend no more than a hour away from where you live.  Figure out how to use it.  Preflight and departure checklists are a must.  Watch youtube videos.  (My wife and I really enjoyed the longlonghoneymoon.com youtube channel)  It all has to feel right otherwise it will not be fun.
Good luck.