We went for lunch, and were seated inside. We wanted to sit at the window, but were told those tables were reserved for five, and we were only four. Now, we got good time to enjoy the menu, for our waitress went missing. When she returned we got into trouble, as one of our younger had practiced asking for a plain cheeseburger- which request she could not understand. In the end we got a burger ordered, as well as a chicken salad, pasta and a simple focaccia. Not too long after, we got the food, including an extra burger that we did not order. The burger was returned. Now the burger (no cheese) turned out to be red inside, including red juice. We are careful with improperly cooked minced meat, so we ended up eating only a small part. It turned out that the focaccia was not cooked to finish either. The pasta was not very interesting, but the chicken salad was OK. The clever table payment system did not work - and no waitress was to see. We went downstairs to pay. I tried to say that we could not eat the burger, but she was only interested in telling us how lucky we were that we did not have to pay for the burger we did not order. I think we were probably a bit unlucky with our visit, but this really stand out as the worst experience of our week in Italy.