Of all the extended service plans I've reviewed, I've found it best to focus on what is NOT covered rather than what is. Read the contract carefully. Look at the major components around your MH and ask yourself, "Is this covered? What is the deductible? What is the maximum (if any) amount the policy pays on _____________?" Does the policy cover towing? If so, how far? What road conditions will they tolerate to come and pick you up? Does the policy cover lodging? If so, For how long? How much? Be aware and you'll be a lot happier if you ever need to file a claim.
ESP's can provide a lot of piece of mind, but be aware that the company/salesperson who sells you the policy is trying to make money, which is expected. If your claims exceed the policy price, all the glad handing and smiles go away . . . . fast.
As a side note: Several years ago I stayed at Chaco Canyon in NM. My neighbor had transmission problems with his 40' DP rig. The towing company that his ESP provider uses would not pick up the rig because it was 20 miles off the paved highway. It's a well graded dirt road approx. 20 miles long from the highway to the park. I don't know what they eventually did but I'm sure it was $,$$$.$$'s just to get back to the asphalt.
I only like surprises on my birthday and Christmas.
Chum lee