Found that it was best price for RV and all other vehicles. I have had this for a couple of years. Used only once but with good results. Called because slideout was stuck OUT! Mech came within an hour and replaced a breaker.
We have it, but have never had to use it (knocking on wood). I think it's good stuff. You never know when you will need it. Tires to change, slides, etc... Just too much stuff to go wrong.