We had a great time staying at Katharina's apartment. The location was fantastic. Michael, Katharina's son, met us at the apartment. He was very accommodating as our flight arrived late. The Viktualienmarkt is about two blocks away and the Marienplatz is an easy walk. The tram is at the end of the block and brought us to everything we wanted to see that we didn't walk to. The apartment has great ventilation and natural light. The bed was comfortable. We like to cook occasionally and the kitchen was well-furnished. There were city noises during the day but very quiet at night. Absolutely wonderful.