FMCAssist is free with your Family Motor Coach Association membership beginning October 1, 2014.
Is it useful? Yes, the average return for medical or death is about $20,000.
Return of motor home is $1.25 to $1.75 per mile. Services are worldwide regardless of mode of transportation provided you are 100 miles from home. It is not medical insurance, no medical bills will be paid, but you can purchase travel insurance to cover those expenses outside of the USA, because Medicare will not pay expenses out of the country.