Saskia's flat is located in a quiet neighborhood (Jewish quartier) which was easy to reach from the Central Station and is also not too far away from cool places and the city center. We explored the city by foot (which was easy because Antwerp is not that big) - but you can also easily rent bikes.
The flat is quite new and very stylish - exactly as described and as you can see in the pictures. The rooftop terrace is amazing and offers an incredible view over the city! You have a bed room and a living room for your own, bathroom and the upstairs kitchen/ living room are to be shared.
Saskia was really nice, she answered all my e-mails in advance, explained where to go and gave us some insider information. Also, Antwerp is a beautiful and amazing city! Will definitely come back soon :)