I have CoachNet. I've used them three times so far, twice for changing a tire and once for a tow. Though I wanted to be towed to the next town on our route they explained (correctly) that they towed to the nearest repair facility. That happened to be a town we'd already traveled through. Still, it was a 45 mile tow with both the truck and 5er, and CoachNet covered the entire bill; nearly $600. Each time I've called them they've advised me about when the assistance would be arriving, and have called back to make sure it did arrive on time. One thing that struck me as I was researching tow services was that CN claims that service providers must pass certain knowledge and equipment requirements in order to be placed on their list of providers. It appears that CN develops a qualified list of providers they can contact when a client reports a given problem. This includes technicians who are available for over-the-phone assistance on appliances, etc. So far, I've not used this service. GS may have the same requirements but it did not show up when I was doing my research about 4 years ago. I have had no experience with Good Sam ERS. Hope this helps.