The place is suitable enough for a short stay. The access is rather crowded as I assume the building is undergoing renovations. It's up two flights of winding stairs, which wasn't a problem for us. Location wise, it's fine to enjoy Antwerp.
The room itself is pleasant enough, beds comfortable. The toilet is a little strange being in a cupboard with a sink. Not 5 star accommodation by any stretch of the imagination, but cheap and cheerful enough