My husband and I stayed chez Astrid for 10 days in September. We found the apartment to be true to photos and to be a very comfortable space for 2 people for that amount of time. We were often out-and-about during the day and in the evening but the dining room, living room, and bedroom gave plenty of space for us to spread out during mornings and late evenings. The kitchen is well-stocked if you'd like to cook meals in.
For those hoping to explore to Brussels for the first time, this apartment is located out of the craziness of the city center, but only a 10 minute walk + ~10 minute metro ride to the center if you'd like to explore for the day. It's also right off the 81 tram which can easily connect you to Flagey, Ixelles, Châtelain, and St. Gilles neighborhoods.
Astrid was an excellent host - she accommodated our last minute change in arrival time *and* was quick to meet us with a replacement when our key broke accidentally.
All that to say: we'd highly recommend a stay at Astrid's!