i used it for the fist time a couple months ago. and for the first time ever i have mildew on the combing bolsters. this is after being under a cover for a month, as it has been for 3 years. not impressed given the rave reviews.
The mildew comes back even when left covered. Just the high humidity I think. I think the cover, to some degree, makes it worse. Good for UV protection but bad regarding mold, mildew.
When I had my Scout, I bought one of those custom covers and had the same result as I do with the current Key West.
Perhaps others will chime on what they have had the best results with. Hope so!