We stayed in Diana's flat in the beginning of Dec. '13, and our experience of it was fantastic. It is modern, warm and well-appointed. From the shower to the espresso machine, everything was top spec. Fluent in English, Diana was always ready and able to give good advice/tips when we needed (useful considering I don't speak German!). The flat is close to the tourist attractions in the centre of town. I cannot recommend this flat highly enough: it is brilliant.