My girlfriend and I were visiting Munich for Oktoberfest and stayed at Jan's place. It is a great location, just a 10 to 15 minute walk to the grounds. It is also a similar distance into the city centre.
The apartment is large and very spacious with two double beds. Everything was clean and tidy and we were able to check in early and check out late to suit our flights.
Jan is also a great guy and was happy to have a chat with us when he was home.
We highly recommend this place for location and flexibility with check in and out times.