We were happy with our stay at CityBox.
It is self check-in and check-out, which was straight forward, once I found the correct code.
Comfortable and clean.
Basic but, all that was needed for our stay which was to spend time exploring the city, not the hotel.
There is a kitchen and laundry facility for guests to use.
We used the kitchen/dining/chill area and stored things in the fridge. Only issue was there were no cups available for making tea/coffee on our last morning, which was disappointing.
An improvement would be to have tea/coffee facilities in the room.
Overall, a good stay and location for exploring what Brussels has to offer. Lots of shops/restaurants nearby.