Welcome to the forums Sue.
Have not heard of them but out of curiosity did a Google and suprisingly found that Scott Stevens of RV Protection is also a Motosat Dealer (2-way mobile internet)! Go Figure!
The dealer link is here
. Use the browser's "Find" under "Edit" menu to find his listing.
The so called "extended warranties" are nothing more than insurance - no more and no less. Many advise banking the payments into a special maintenance fund. Also be very, very sure about what exactly is covered and what is not. I have a feeling that you would be amazed at what is NOT covered.
Do a good job of your due diligence before you part with thousands of your hard-earned dollars.