I've only had this at a pub with the raspberry syrup. It was at a Winking Lizard here in Ohio, several years ago, so this may not be correct or traditional. It was served with a small plastic shot glass of syrup (room temp) on the side, so you could add as much as you liked. I've heard the woodruff can give a medicinal taste if overdone, but, like I say, I've never had it. When I have bought Berliner Weisse for home consumption, I've taken my medicine straight- ohne Sirup!