I also have a Covercraft cover. I bought it for my first PT Cruiser. Since I'm cheap I tried it on the Crossfire and it fits in all the right places so I didn't see the need to spend another 150 bucks.
Mine has a locking cable to keep my son from my car while I'm on vacation.
Covercraft has several different grades of covers. The one I have is water resistant and it "breaths" so moisture is not trapped under it.
Pat