I have used plexus...it never impressed me. I thought it was marginal and overpriced. That is what led me to the Honda spray cleaner/detailer (which is the best detailer I've ever used).
This Raincoat stuff works more like Rain-X, but it won't destroy the optics of your plastic visor (rain-x will turn your visor milky white with continued use)
-Keith (Yup, thats me...and my rubber chicken)
Making the world a better place, one rubber chicken at a time!
'98 Buell S1 Lightning
'86 Honda CB125
'00 R1100RT (parting out, PM me)