Hi Jeff
There are pro's and cons
We had a cover last year for the first time and my experience has been
For:
I live in an urban area and the cover prevented the heavy air pollution from leaving too many marks on the caravan
We didn't have to worry too much about spent fireworks in November
We felt that because the van was covered the security was increased
We didn't worry about dead leaves, frost, snow etc affecting the paintwork
The cover is breathable so there is no possibility of it affecting the 'seals'
Against:
The cover is heavy and was awkward to fit.
Once it was fitted we were reluctant to consider using the caravan because of the difficulty of removing and refitting the cover
We noticed a few very light minor scratches on the windows
After we removed the cover we had to clean it and fold it then store it in the garage for the next eight or nine months
The caravan was still in need of a good clean, polish and wax and I couldn't help wondering if the effort was worth it. Maybe I should have saved the money and just used Fenwicks overwintering application.
On balance I'm glad that we bought ours, we managed to buy it in a sale from Golden Castle caravans so saved about