The apartment you will be staying at is a 68 square meter flat in the middle of Munich. Your room has about 12 square meters. There is a Table, a few chairs, a reading chair and a full guest bed (for 2 persons) in it. You can use the kitchen, the bathroom, the washing machine and - of course - the WirelessLAN if you want to.
Tram #19 stops directly in front of the door. You will be in 8 minutes at the Octoberfest and in 10 minutes at the central station.