Petra's place was really lovely. It was central to the old part of Antwerp, near the Cathedral, which was exactly what we wanted. Very clean and great for our stay as four friends.
Petra left a bottle of Cava, which was a very welcome treat. And because there was no booking on the day we left, we were able to leave our luggage in the apartment until it was time for our train home. Very accommodating :-)
Yes, you can hear the noise from the bar below at night, but the area is busy with bars and restaurants and that's where we wanted to be. We all slept just fine!