Werkstatt has a lot of value added compared to
Klasse. Custom formulations of Prime, spray version of Acrylic Jett, great customer support, car wash, QD, carnauba products, etc. However,
SG compared to the standard (non-spray) version of Acrylic Jett, there probably isn't much difference and I'd finish my SG before buying more Werkstatt stuff.
Looks wise, Werkstatt Acrylic Jett and Zaino (w/o Z8) look pretty similar to me on light colors. Z8 adds a little something extra though. Slickness is also similar.
On the durability side, it is pretty clear to me that Zaino lasts longer, especially when you factor in treatments of Z8 and Z6. However, Acrylic Jett Trigger is so easy to use, that it isn't a big deal to reapply. You'll have to decide what you're looking for on this front.
Easy of use is easier with Zaino if you are doing a hand application of only one coat for both products. However, I think AJ Trigger is a lot easier.
It's hard for me to recommend one over the other. I use Zaino on my black car, where I cannot always detail it, but can invest significant time detailing it every 3 months. Zaino lasts a long time, as it's fairly easy to use, and I can add coats when needed.
I use Werkstatt on the car that I never have significant time to detail, but can throw a coat of AJ on with minimal prep every month or two. The car is also silver, and I think it looks great on this car.
- Justin