Birger's place is well located. 10 minutes walk to the train station and 3 minutes walk to the tram station, where you can take tram 1 to the city center. The house is exactly looks like in those pictures and even more modern than I've imagined. The room was simply decorated but well equipped.
I'm lucky to meet Birger in person and he is really nice and easygoing.
Highly recommend this place and Ghent is one of the best place in Belgium as well :)