Quite a sophisticated and elegant place but non pretentious and very friendly. Superb menu, completely vegan. Lunch time dining here is an absolute treat where there's usually a special set menu deal. Been here three times, once for a lovely evening meal where the lighting was perfect and once in the early afternoon where it was packed out with people 'doing lunch'. The third time in April 2015 was for the Saturday evening vegan buffet which was simply divine. Fabulous selection of salads, soup, main dishes and succulently sautéed vegetables. The deserts were also pretty inspiring. Hiller is the vegetarian king of Hannover. Royalty? The only royalty I acknowledge is that of an animal friendly vegetarian nature.
Cons: toilets outside and upstairs