Tried Novus #1 and was initially disappointed. Considered buying Novus #2, but I had some Nufinish Scratch Doctor laying around. Made a couple of buff and wipe passes with Scratch Doctor and it worked wonders. Followed up with Novus #1. The clear plastic lens now looks great, though a few scratches still show. More passes with Scratch Doctor would likely have made it like new, but it's plenty good now.