Wanted to post an update; finally got the Goldline cover on. After a painful experience with the ordering process/customer service (for an in-stock cover?). It took two months to receive it, of course we had snow by then. After a warm, rainy Christmas Day all the snow is gone so we put the cover on.
I have to say the cover is very good quality and we are pleased with it. It is a much heavier gauge (nylon?) versus the “tyvek” like covers we have used in the past. So time will tell, it will soon snow again and that will be the real test. So far it looks like a very good value. Will order a second one for the AirStream.