Sam, I have not used my cover for the last month. The reason: it has snowed almost every day the last month and I can't keep the car clean. I will not put the cover on a car covered in road salt grit etc. I use the car a couple times a week and it is impractical to wash it after each use in the winter and almost impossible since it gets dirty on the trip home from the DIY carwash because of the constantly sloppy roads.

As far as the cover goes, I highly reccommend it. It fits perfectly since it is custom fit for each model. It has one central tie that goes under the center of the car to hold it on, but I have never installed it since it fits so well and doesn't seem to move or flap around in the strongest winds we have had around here.
For winter use it would be great if you are just leaving your car parked for weeks at a time.
I am still glad I purchased it and use it all the time in Spring, Summer and Fall.

Thanks for the 411 Wayne. I'll look for a local source.