I was kindly picked up from the train station by Martina's husband who was very welcoming and showed me around the place. The room was very clean and quite, as it is not facing the main street.
The flat is equipped with 3 bathrooms and I did have full privacy all the time.
I only spent 1 1/2 days at Prague and did not use public transportation at all, I just walked everywhere. Overall a very good Airbnb experience!