Over the years I have had both GS and CN
In 07 when I bought my coach it came with Coachnet. For that I was grateful as Monaco, I think, built mine during the marijuana harvest. But that's another story.
Coachnet was great and, because of my Monaco coach problems, I used them regularly. My problem was in Alaska. If you have driven the Alaska Highway you will probably understand. About 30 miles toward Alaska from Whitehorse my radiator sprung a leak. I had protected it but perhaps the rock went up and over my protection or perhaps a seam split. So I parked along side the road and my wife drove back to WH to call Coachnet. When she reached them they insisted on knowing the cross streets.after about 10 minutes of talk she convinced them there were no cross streets but had mile markers.
Then they told her that the tow would not be covered if it was a rock that caused the leak. She told them she didn't know what caused the leak and the shop would have to figure it out.
Whether it CN or GS they only have one tow truck that can haul a 40 foot MH. So it was sent.. I can't complain about the time, probably 4 to 6 hours. The driver was polite. He didn't see a need to disconnect the drive-shaft but I insisted and he did it. He also destroyed the front air bag regulator wen he hooked it up. He towed us back to WH and to a shop he felt was the best for us. I think he was correct. I told them what we were told about the rock and radiator by coachnet.
When we got the radiator back the next day I was quite a surprise to find that a seam had split causing the leak. So the tow was covered.
I had to pay everything up front because the shop wouldn't deal with coach-net because of unreliable payments. I was told that if I had GS there wouldn't have been any problem. They paid their bills on time and I wouldn't have had to pay of the tow.
I don't fault CN for the driver as GS would probably have sent the same guy.
My problem was with their Dispatcher and Coach-net's policy about radiators. When my contract was up I switched GS and haven't had a problem with their service or contractors.
Coach-net did finally reimburse me for the tow but it never should have happened in the first place.
I'm happy to see the competition between the two companies and wish there were more companies available.
If you are driving to AK I wouldn't leave home without some type of ERS. Sometimes the distances are great between where you break down and the nearest shop so be sure you have unlimited mileage. And check you policy to see if a rock caused leak is covered.