We stayed here for a few nights while on a trip across several cities in Western Europe, and this was by far the nicest! It's spacious, quiet, clean, comfortable, and conveniently located. If you are visiting Antwerp I highly recommend staying here!
The only negative I can think of is that the key/lock to the room is pretty sketchy and hard to use. Upgrading to a modern lock would make me feel a bit safer about leaving stuff in the room.