I really enjoyed the stay at Katrien's place. The place was very clean, nicely decorated and very quiet. The house is in a great location, certainly if you need to be in that general area - close to the Antwerp harbor and close to the Dutch border. It took only about 30mins to get to Katrien's place coming from the Brussels airport (not during peak traffic!).
The only little downside is the fact that the toilet is not in the unit's bathroom, but is actually in the hallway. Although still very private (you are the only one using this toilet), it is somewhat a hassle - certainly at night.
BTW, Katrien is a great host!