So far, I'm sold on the 303 Aerospace. After doing some research, not only on here (which was great... thanks everyone!), but going to auto detailer forums to see what they like as well as boating forums trying to find something to protect the vinyl on my pontoon boat, and 303 Aerospace keeps coming up at the top of everyones list. No oder, brings out a nice deep luster finish without feeling too slick, no "wet" look to keep glare down and most importantly (for me, anyway) it gives the plastic/vinyl a UV protection equivalent of SPF40 (+/-)! Works just as well on exterior plastic including all light lenses.