We arrived late at night, so Giack arranged for our friend who lives in the city to pick up the keys from his friend. Worked well.
The apartment is excellently located and is very spacious. As others have pointed out originally furnished and clean.
Being an old apartment in an old building, where neither have been refurbished/modernised in quite a few years, be aware that not all amenities are up to date/of a modern quality.
We had some issues with the water heater, but made it work and give us hot water most of the time. Thus showers could be made in the bathtub (with no shower curtain).
All in all, another nice visit to Munich.