We loved our stay here and would definitely rebook if returning to Brussels.
The location was amazing, right in the heart of the action but far enough away from the busier shopping streets (which were great to wander around).
As others have said, it can be a bit noisy at night (car/sirens and the occasional busker) so if that's an issue for you then bring earplugs, but the bed is comfy and the place is spacious and light.