All was rather good. We did not expect much from this apartment and our expectations were met. I think this is a good stay for rather modest travelers like us (three young men needed the apartment just for sleeping at night). However, if you travel with a girlfriend or a child then you might feel some inconvenience. The apartment is not the new one, bathroom fixtures are not in perfect conditions, e.g. water constantly changes its temperature, etc...
Location is rather quiet (despite trams passing nearby) and good: we did not use public transport in Brussels at all. The city center is up to 1 hour walking distance.
The beer in the fridge was a nice complement.