The appartment has an excellent location (really on a "secret street", noise-free), it's easy to reach the Grand' Place by foot (even if underground & bus stations are very close), the area (around St. Catherine's Church) is full of value-to-money restaurants, all the electrical appliances are available and many maps/travel guides are at your disposal.
Regarding the host (Berenice): a very nice person, highly educated; she will provide you with all the necessary info.