Flat was in a an excellent location. Several of the best Christmas markets were within walking distance and the Hop On/Hop Off bus stop was right around the corner. One of our party members has difficulty with stairs but the elevator was easily located and worked well. Our flight coming in was delayed several hours so we arrived the morning after we expected and Erich was very responsive to my communications and was able to let us in when we arrived. We very much enjoyed our stay, thank you!