I had to have my Xfire repainted (Thnx local dirtbags) about 5 years ago. It has been pushed out of it's cozy garage, and into a carport, by my 34 Ford 3 years ago. The 34 has a suede finish. You can't clay it. You can't wax it. It was built in 2005. Still looks great. The Crossy hasn't been waxed since it was repainted. Still looks great.
Don't get caught up in the hype. Use whatever is on sale. Or don't use any at all.