This is not ment to be a flame, but the more I read on this site the more I disagree with it. Below are my opinions of the test, no flaming....just my opinion.
I noticed that the site stated that the results from Klasse and Zaino were "unimpressive" and that for overall Klasse got a "C" and Zaino got a "C-" That means that the products are average. I totaly disagree with this. I have tried literally hundreds of products are Klasse and Zaino are far from average. They are among the best products that I have ever used.
Zaino got a "D" for application. In the world of car products, its does not get much easier to apply than Zaino. Also, a "C-" for smoothness, that really shocked me. Every car I have touched with Zaino has been super slick, you can put a towel on the surface and it will slide right off.
Klasse only got "C's" in Gloss, Depth, and Reflectivity. I dont agree with this either In my experience, Klasse if far better than average in those departments. I have Klasse on 3 of my 4 cars, and the results are simply stunning.
I noticed that Zymol got a "C" for application ease. Zymol has to the biggest PITA to use and buff off. I tired it and was very dissapointed with it. The durabiliy was horrible, it only lasted about 1 week.
The "Final Results" in the High End Wax section the tops picks were all waxes, and polymer sealants were all under "not reccomended" IMO polymer sealants are great products, but this test gives the impression that they are crap. I don't think that is fair at all. I know people that compete in Concours events that use polymers, so I dont think they are as bad as this test portrays them to be. I use both the Klasse and Zaino system, and they are far far better than just average products. In my uses of both of them, they produce a stunning shine everytime with minimal work or effort.
The final results are impacted a great deal by the condion of the paint to start with, they prep, and they application of the product. I have gotten amazing results with Klasse and Zaino. Results that no wax has been able to come close to.
Whew, thats enough typing

Again, this is not a flame...just my opinion.