We stayed with Julian and Carlo during Oktoberfest. They were very warm and welcoming during our stay and even invited us out to their table at Oktoberfest which was a great introduction to Munich. They were extremely responsive and helpful.
The place was plenty nice with a large bathroom that you'll be sharing with 3 other guys. It was never an issue. It's located next to a central bus stop and a short walk to a U-bahn station. Make sure you ask them how public transportation works! It's essential in getting around Munich. There's also a bike rental place about a 5 minute walk from their place.
There's also a steady supply of Augustiner Lager on hand when needed :)