We had a brilliant stay at Greta's lovely studio. She is an experienced host and we found her recommendations regarding sights and restaurants extremely helpful.
The location is just close enough to the centre to explore Antwerp by foot (or bike) but it is far away enough from the touristy bits to get a feeling for the atmosphere in this multinational city.
Pretty likely that I return to Antwerp and I'd definitely check Greta's studio for availability.