Roland's place has a great location; it's not far from the center of Munich by public transport, but at the same time, quiet and peaceful. There are great connections to the historical center, but also to the English Gardens, Pinakotheks, etc. It's possible to walk to the Nymphenburg Palace along the very scenic canal, and stroll through some very nice neighborhoods in Munich. From the central train station, it takes about 10 minutes via subway and then another 5-7 on foot through a safe, residential area with plenty of cafes, restaurants, and bakeries that open early :-)
Roland is very kind, caring, and helpful. If there's anything you need, he'll do his utmost to take care of it and help out. Whenever we asked for suggestions about where to eat, how to get somewhere, or what to do, he was a fount of knowledge and wisdom. He's great to have a chat with, but doesn't impose, so how much (or how little) you interact is ultimately up to you.
About his apartment, there's everything you'll need and Roland keeps it very clean and organized. We had a very pleasant stay with him and would not hesitate to see if his apartment was available if visiting Munich again!