I've benn using Cervinis 2-piece speedster cover for about two monthes now. My main complaint is that I had to install two snaps on each side behind the light bar next the rear side windows. The problem is that using their template, it's hard to determine where exactly the snaps are supposed to go. It took a lot of trial fitting to get it right. It's held in the center with a bracket that attaches to your rear seat belt.
BTW, I get so many more compliments and looks since the cover and just yesterday the 2-pc saved me when we had unexpected down-pour. (the wife even loves it)
If you decide to go through with the Cervini cover e-mail me for a way to avoid using the rivits on the snaps, screws w/ nuts were much better and a couple of other tips I found to fit it much better!