Although the apartment is not right in the centre of the city, it is just a 5 minutes walk to either the train or metro station and within minutes you will be right in the centre of the city (also the airport). There is also a shopping mail nearby (just beside the train station) and you could get anything there and also eating places.
The place is also quiet and peaceful and the apartment is spacious and cosy, just make you feel you are right at home. By the way, I was with my wife and 13 years old daughter and they enjoy the stay too.