The guy that I purchased my R3 from over 6 years ago had treated the finish with LG.
When the bike was delivered to me it had, IMO, a better than showroom finish and it lasted for a very long time (several years). I confirmed with the seller that he had used their whole paint-finishing system, comprising of a cleaner/sealer (their Precleaner) and a polish/protectant (Ultimate Polish). Supposedly the two components form a lasting and protective molecular bond of one to the other. The finish was truly glass-like smooth and lustrously shiny.
I'm just too lazy or time-challenged to re-apply or maintain what appeared to me to be a stellar product. Using Pledge or Honda's Spray Cleaner is just way too easy!
Notwithstanding my sloth, I'd give the product two big thumbs up, but would caution that you use their two part system to obtain its greatest effect and benefits.