I have Progressive insurance on my Class A. When I made a bonehead move and slapped the tail end of my RV into a metal pole in my RV Storage lot they immediately sent an adjuster and worked with my body shop (National Indoor RV Center in Lewisville, TX) to get my RV fixed fast and right.
The total bill came to $26,000 and they didn't give me or NIRVC any trouble. Yes, they raised my rate from $840 a year to $1,400 a year. But at this rate they won't break even for 18 years.
I highly recommend them to RV owners.