I have a GS ERS, they've treated me fairly. A purchaser of such a contract must understand how they operate(all of them). The operators who answer the calls must read you the question on the computer screen, then depending on your repiies initiate the appropriate actions.
If ERS is required, they are required to call all nearby contracted services to locate the lowest bidder/price before dispatching a road service.
This means it's vital you have the correct information on file or inform the operator when you call for ERS. If you are not happy with the operator immediately request to speak with a supervisor.
One time I had engine problems/no start, and GS could not locate a local towing service with the equipment to tow my MH safely.
I looked up HDT towing on my computer and called them directly, got the right answers and called GS ERS back and requested to speak to a supervisor. The supervisor explained the above process and said she also must comply with the procedure to locate the lowest price.
After about 30 minutes she called me and said the service I located was the only one qualified and had dispatched them to my location.
When the wrecker co. showed up they had 2 wreckers, a small wrecker to tow my MH out of the RV park and a very large wrecker to tow it to Cummins Great Plains 60 miles away. I was not out any money for all this, the bill was $1,7xx.
Repairs made I began my trip again, 30 miles later the same engine problem happened. Again GS ERS paid the bill without question; but Cummins Great plains did reimburse GS because it was their fault.
To finish this, anyone purchasing ERS must read the fine print in the terms and conditions of the contract before signing and understand all clauses.