I have used the 303 and the Zaino "leather in a bottle" on my dash and doors. The Zaino is shiny, almost greasy, but it can be "buffed" with a clean towel to take down some of the sheen, though. The 303 works great, not too shiny and doesn't attract dust. I mostly use the Zaino on mine because I like the smell. Smells like leather...mmmmm!
Matt