The RV I am buying is preowned (I prefer that to used) it is in good condition. But, not as shiny as I would like.

[Newtodiesel]

I have watched several "YouTubes" about Zep which is actually a commercial floor polish. It looks good, my question is how does it hold up. Does anyone have experience with it and how does look a year or two later. Also, what about recoating it later?