Hm...can't say of any breakdowns at this point. 1984 Itasca 34ft. Windcruiser. Bought it used a couple months ago. Other than fixing the dash air and getting (still under diagnosis) the generator functioning correctly, I've had zero problems. It had the normal water leak on the roof, which I fixed just a few days ago. However, I've had it out twice now and simply loved it. Has a almost 75k on the odometer, rides like a dream and has plenty of juice. It's based on a Ford chassis with a 460 engine.
I haven't been traveling long distances with it yet, but my general trip has averaged a little over 10mpg...yes that's 10mpg! Last owner said he didn't get over 9 in it, but a new air filter, plugs, timing adjustment, etc...and she runs like a champ. Overhead air works wonderfully, both front and rear bedroom. However, I have NOT flushed the winterizer out of the water tanks, so I'm still in need of doing that. Last owner took decent care of the unit, so I'm assuming all is good. I'll let everyone know when it breaks down, if ever! :)
After hundreds of trips camping with my father, who is passed away, I decided to buy this to go back to my youth! Although it isn't the same without him, it helps me remember (and I'm not that old...) the good old days. We had a truck bed unit for years. It's great...