I stayed with the family for one month, and it was the best experience I could have had in Munich! They were all so helpful and friendly from the first day, giving me advice on where to go and how to get there. And the room itself was wonderful to stay in. Though it's not near the city center, it was very easy to get there every day, and I much preferred the quiet neighborhood to live in (there is a lake and biergarten nearby too!).
I would definitely stay here again, even if it's only for a weekend :)