The building is great, newly built. Central location with a shortcut alley to all the restaurants. A short walk to central station where you can catch the train/bus/taxi/tour groups meeting point. Tons of cafes, shops, waffles, and restaurants nearby.
The airbnb is very nice, perfect for 2 people. Right next to the lift but we couldn't hear the lift at all. Very clean. If someone is planning to sleep upstairs on the sofa couch it's wise to bring eye mask since the upstairs windows don't have curtains. I had a hard time getting the host's attention via airbnb messages but she did check in with us when we arrived. Great place, we really loved Brussels.