I have stayed at Martin's place now many times and many nights. The quality of the house where the rooms are is excellent. Martin as host is great and full of interesting information about lots of things.
The house is relatively close to public transport for getting into Munch itself and is within easy walking distance to the Infineon Campeon Park for anyone working there. Furthermore, the house maintains a perfect temperature in throughout the year, summer and winter, very comfortable.
Martin does mention his cat but it's quite shy so it would only be a problem if you are alergic to cats or wanted to bring a pet/animal.
If I'm in the Munich area again in future and need somewhere to stay I would not hesitate to book Martin's place again.