You must have had the "Chocolate pudding". Well, that is a "timeless classic" in Austria and Germany (part of the children's dessert portfolio), even though it is possibly "an acquired taste". Understand however that this restaurant is trying to find a niche in the most expensive area of the city area that is (like everywhere else in the world) populated with 99% of meat-eaters and nevertheless popular as a business lunch place due to the "organic" appeal and the menu that caters to meat eaters habits. They try to interpret non-vegan Austrian food (and traditional Austrian food is 100% non-vegan, unfortunately) in a vegetarian way. Sorry you did not like it. I was there on numerous occasions and liked it a lot sometimes, and just a bit at other times. But "worst restaurant" in the city? C'mon.