Shortly after I bought my bike I realized that I needed something to clean the windshield. I had seen various sprays and cleaners at the bike shop and questioned why Plexus was so expensive...$25 for a 13 oz. can. Their response was "It's good stuff". After using it for a season I think that was an understatement as I think it's GREAT stuff. Does a wonderful job cleaning protecting and removing static. I use it sparingly but on an almost daily basis and I still have half the can left. Just passing along my experience.