Peter and Gilles were great and friendly hosts. They were happy to give us indications every time we asked, and to give us our privacy when we wanted. They upgraded us to a bigger room when we arrived (which was really quite big). The room, bathroom and the apartment were all very clean and comfy. The breakfast every morning was also very nice.
As for the location, it is just next to most of Munich's museums, and 15-20 min walk from the city center. We never used the bus or tram, except to go out of Munich.
We recommend.