the location is fair, not central but close enough to the metro.
The apartment was relatively silent, more than I have seen in general. However, the price indicated in the website was very ambiguous. In fact on the website it looked very cheap as it just included the rental for the apartment. When I booked I had to add 40 EU cleaning fee, plus 7.50 su for the city tax and Wi-Fi was not free either. It is 2eu/day.
Furthermore, nobody told me to wash the dishes and take out the garbage so that now I have to pay an extra fine. They left a card saying that in German which I don't speak. However, when withdrawing the money they could make themselves understood in English. So overall beware that the price is double what you see in the website!