Krystyna was a very kind host. She waited for us till late and took the time to show us around the apartment. Clean and airy room! Her place is only 15min via bus to the center, and you can walk to the stop in 5mins. There are nice cafes and shops around, as well. Just be careful at night if you are a woman. I carried around a pepper spray with my sister because there are a lot of men who will harrass you in the street. Nothing that's out of the ordinary in a big city..