I had a nice time at Steves place. It the room was nice and clean, as was the entire apartment, facilities were on point. I had some of my clothes washed there as well. He also has a nice terrace with a great view of the sunset!
Sure, it is not literally in the middle of Munich, but city center is within walking distance, and there is plenty of public transport in the area. Also - it was pretty easy to get there from the airport, which was pretty great.
Well worth the price of admission :)