I knew exactly what the downsides would be because they were crystal clear from the beginning. You have to climb several old narrow stairs to reach your room, so it's not a suitable option for all kinds of guests. But I had been warned of that. Besides, I did not like the decoration of my room: the purple painting of the walls and the black tiles make for a very dark ambient. I managed to have a glimpse at some other rooms and all of them were decorated with much better taste, in my opinion. But once again, I had seen pictures of my room before booking it - and it's exactly how it's shown. What you see is what you get. Lastly, EUR 95 a day is not exaclty cheap for their standard of accomodation. But I accepted it as it was my first time in Brussels and I wanted a central, hassle-free location. So I don't regret it.
Their location is hard to beat. Rue du Marché au Charbon and its surroundings have cool shops and eateries (don't miss the burgers and cheesecake at Rachel) and, for gay travelers, it's right in the middle of the fun (a couple of blocks away from the bars. Staff knows the exact balance between being friendly and helpful and not interfering in the life of the guests. You are given all the keys when you check in and have complete freedom. Wi-Fi works very well. And the room is cosy enough to make you feel at home after a whole day of exploration. Pretty much everything you may expect from a bed & breakfast.