If you are more than 2 people you can also book an other bedroom in the same appartment for one person.
I want to rent my flat for the Oktoberfest. The apartment is close to an Sbahn station. Grocery store is also very close around 3 mins walk. You need 20 mins by train (Sbahn) to main Munich city center.
You will have your own bedroom and you will be able to use the bathroom and kitchen in the apartment