HI, I am a Zaino user. I recently tried Zaino CS with really good results. Since you are having your car done by a pro, I assume the paint is in new condition (no swirls or other defects). The Z-CS is good for maintaining the finish in my opinion due to the ease of application and durability (claimed to be up to 9 months on a single application.) It is just wiped on and left....
I have had very excellent results with Zaino products as well as the
Menzerna line. The ease of application and durability makes Z-CS a good choice even above the price.