Location wise, 20 mins walk to the city center, 5 mins walk from the Midi station. There are quite a few late night shops in case you crave for midnight snacks. I had some communication issues with the host/hostess due to our language barrier, but it is all good, she is very willing to help.
Owh yea, there is a city tax on top of the payment you made in Airbnb, but it is not very expensive, just so people who doesn't come from Brussels (like me) know :)