We stayed for a few nights. The location was great, the staff was kind and helpful, and the room was comfortable and clean. Our room was on the top floor, and it was very quiet.
Some reviews were negative because there was no AC. Well... This is a relatively small hotel in a European city; of course, there won't be an AC! But the room was equipped with fans, and we barely needed them. During the day, we were out and about, and at night, the fan was more than enough (we didn't even use it every night). So, this is a lovely place to stay in Munich, and if we come back, we'll definitely book it again!