This house is hands-down one of the most interesting and unique places my family has ever stayed - and we have had a lot of great experiences!
Pros:
The house has so much character, as it is clearly very historic and feels as if you have stepped into a different time period. We absolutely loved this aspect of it! Additionally, the house is extremely well located: it is situated only a few minutes from some of the best restaurants and bars, the Grand Place, and the central train station. It's also only 5-10 minutes walking to the Royal Palace, Saint Catherine's, and other big sites. Although we did not get the chance to meet Rik, he was easy to communicate with, and arranged check in/check out in a super flexible and simple manner as well as providing awesome recommendations for exploring the area.
Cons:
We had no problems with the house, as we are a family of mobile adults (my brother and I are in our 20's, our parents are in their 50's and both in good shape). However, the stairs are certainly narrow and steep, so I would not recommend this to a family of young children, anyone with mobility issues, or anyone who plans on extensively exploring the Belgian beer scene. The house is also very historic--which we absolutely loved--but that also means that its layout and amenities, while entirely functional, are relatively basic. The sleeping arrangements are set up as an attic on the fourth floor one lofted bed and several other beds, and then a queen sized bedroom on the third floor. This worked perfectly for us, as my parents took the bedroom and my brother and I took the attic, but if you are trying to book in a larger group of couples or some other grouping that requires multiple bedrooms I would be aware of this.
Overall, we really loved our stay here, and appreciated the unique character and top quality location of this house. I would highly recommend this place to adventurous travelers with a love of history and an itch to stay in a place they will never forget. I would be wary if you want someplace that prioritizes comfort/convenience over character, as the stairs could be hard to navigate.