Elke, her husband Hubert and the apartment are all really lovely. Me and my sister stayed here for 5 nights to celebrate my sister's birthday and visit Oktoberfest. The cost for staying here was half of what the hostels charged and much better quality. Elke contacted us before our trip to make sure we exchanged contact details and was always very quick to respond to questions. She offered to collect us from Ostbahnhof and accompanied us to her apartment where her husband Hubert was cleaning from top to bottom. The apartment is in a lovely area located on the U2 - about 10 mins to Marienplatz (the centre). The flat itself has everything you might need and is modern and really well-equipped (hi tech shower, coffee machine, fast internet etc). The two other guys staying in the other two rooms are living in Munich and are both really friendly and helpful. I would definitely recommend staying at Elke's!