I didn't meet Andrea but he responded almost immediately if I sent him an email. I enjoyed staying in the flat which was very spacious and homey. As it is on the ground floor there is some noise from people going by, but it is a fairly quiet street. This also made it a bit dark, but I was out most of the day in any case so that didn't bother me. I went to visit my daughter who lives in this residential area of Berlin so preferred not to be in a downtown hotel and be able to make my own meals, etc. The neighborhood is very charming and pleasant and I was able to find everything I needed at the local Kaiser supermarket in the shopping mall at the Metro station. The main Berlin sights, museums etc. are a short Metro ride away and you can experience Berlin in a less touristy way. There are also plenty of restaurants, cafes and bars around if you don't feel like cooking. The flat is in an older building with character which is also nice. Went to several restaurants recommended by Andrea, both of which were good.