My stay at Ingrid's house has been very pleasant. Ingrid is kind and respectful, and has answered all the questions I had.
The location of the house is very convenient: it is a quiet area well connected with public transport. Tram/bus stations are close (3-4 min walk) and it takes around 20 min to arrive to the center. Nearby there are also some services such as supermarket, bakery, pharmacy, Italian restaurants, Biergarten, etc., and nice parks to go for a walk or jog.
The building has no elevator but I found it quiet normal from previous experiences in the city. Ingrid's apartment is cozy and my bedroom was spacious: with a bed, table and chair to work, armchair and some extra furniture to leave my things and clothes. We shared common spaces: kitchen and bathroom, showing respect and common sense.
I very much enjoyed my stay and will keep a nice memory of this experience.