Me and my wife stayed there for a week and we had such a great time.
The room is clean and equiped with everything you might need, we had full access to wireless internet too (I have to say that because I know the internet access was a problem in the past).
The hosts were helpful and friendly offering us advices every time we needed them.
The bus station is near and the public transportation in Munich is close to perfection, we could reach the center of Munich in about 30 minutes.
We definitely recommend the park and the beergarden nearby.
We have only one regret after living with the Gerke-Schwarz family: we were so busy visiting Munich that we haven't got the time to get to know our hosts. And we are sorry for that and we also appologies for that. And we thank you for making our week there a great week.