We didn't get a chance to meet Luis, but his mom Inge was very friendly and accommodating. The listing is for only one room but it's very large and was plenty of space for the three of us. It's right by a metro and about 3 stops from the main station (and only 4 from Oktoberfest!). There was a brief misunderstanding about our arrival time so we had to wait awhile before getting inside but it was only a minor inconvenience. The room is a bit expensive but if you're looking for proximity to central Munich and Oktoberfest, it's well worth it. He also has a very sweet but easily spooked barking dog. We rang the bell when we arrived and it unnerved her, but it wasn't a big deal. We just don't get a chance to play with her :)