What surprised me when we arrived:
1. The flat is on the first floor, the entrance is directly from the street.
2. The only window is a small one in the door. We can't leave it open for the whole night (noise + security reasons), but when the window is closed, the air in the appartment becomes humid (since the flat is on the first floor, you feel a bit like in a cellar).
3. Beacause of first two points, there's no natural light in the flat.
For the rest, the appartment is ok, looks like on the photos, but I was glad we only stayed one night.
Sofia replied us quickly, she was late to meet us but asked her neighboor to open the flat for us, so we only waited in the street for 15 min.