We have been in the apartment for 1 week, me, my wife and two children. The apartment is very spacious, two big rooms and a big entrance room. All things were working fine. The location is not completely in the center but close to central areas, and within walking distance there are many shops, including Kalrstadt. Also the Nordbad (a public swimming pool) is around 300 meters from the apartment. The subway U2 (stop Josephplatz) is also within 300 meters, which can connect you with almost all destinations in Munich.
The only thing we were missing was a microwave oven, which is a pity which is quite necessary specially if you are on holidays.
The heating system is though a boiler located in the living room, which was working smoothly, but during the night it can be a bit noisy for those sleeping in the living room, our children in this case.
All in all, we enjoyed our stay in the apartment, and would return to it in the future when coming back to Munich.