Everyone here agrees on the real quality of this experience, and that's a good indication of time well spent on a unique insight into a food culture derived from a lively folk culture in a lovely city. People here are knowledgeable and above all proud of their food and wine, and a walking tour that explores the 'gems' is a stimulating (and filling) experience. What really set the tour apart for us, though, was the passion of our guide, Dora, and the fact that she had an opinion on things! I read somewhere about the value of connoirsseurship - the fact that, whether you agree with someone or not, you can be confident they've come to that opinion through experience and careful consideration, and thy really value that opinion and hold to it for a reason. This makes for authenticity and 'high touch', a sense of sharing an 'insider's' knowledge. As, for example, in the careful selection of just a small number of salamis from the scores available (and otherwise accessible only through an impenetrable language!) Absolutely irreplaceable, highly recommended.