+1 for Zaino. It is actually a synthetic wax rather than carnauba. The word "polish" is a bit misleading as it contains no abrasives (unless you use their newest product which is specifically designed to remove scratches and swirls) and according to the manufacturer is 99% optically clear, unlike carnauba which has a yellow tone.
It's easy to apply if you follow the steps. It won't stain rubber or other trim and does not leave white residue. And tests have shown it outlasts many leading brands. I usually apply 2-3 times per year.
Shine is fantastic, but some prefer the "warmer" look of carnauba. Car care fanatics are actually applying multiple layers, combining synthetics similar to Zaino, then topping off with Carnauba to get the warm look. I'm not that keen, and Zaino suggest that topping with Carnauba is a waste as it will not stick.
This August, will be 10 years I have been using Zaino on 3 cars - 2 Subaru Outbacks (one maroon, the 2nd pearl red) and now my 09 black HL. Prior to, I used Mother's and Meguiars. Both have great shine, but after a few washes, no more beading and the shine starts to fade. They just did not last nearly as long as Zaino, or any other top line synthetic waxes.
So can most see the diff between Pinnacle, Klasse, Zaino, or other synthetics? Probably not. All are great and all have excellent durability. Anyway, what matters is that whatever product you use, you are happy with it. I have no experience with Zymol, but of Mothers and Meguiars, I would recommend the latter for durability.
As an aside, I just used a Porter Cable 7424 orbital polisher and Zaino PC to remove those unsightly spider web swirls that you see at a certain angle. I forgot to tell the dealer not to detail and wax my car prior to delivery....I think they use dirty mits and poly towels. Anyway, I clayed the entire HL, fully polished it with Z-PC, then 3 coats of Z5, and my black HL looks fantastic.
When I can get some pics in the sun to demo, I will. For now, here are a couple of pics under the lights in my garage.
Sorry, hand not steady enough on the next one...a bit blurry...