I too share your frustration. If you are not fairly handy at repairs, I don't know how one can afford to own an RV these days. I have had 4 RV's in my lifetime. They have gotten progressively worse over the years. Previous to the travel trailer we just purchased, we had a 30 ft Class A motor home for 20 yrs. While it served its purpose, I can remember few trips that we took that something didn't need repair. sometimes minor interior stuff, sometimes chassis issues. The best was an 80's vintage Conestoga PU camper. Then again, it was small and not self contained. A lot less to go wrong.
I'm hoping for better results this time, but we are not holding our breath.
It really doesn't matter what the warranty is if the unit spends all its time at the dealers repair facility.
Obviously, many manufactures don't really give a rats hind quarters, as they are still selling RV's like crazy. Quality control is a thing of the past.