We booked Sergio's place only 2 days in advance and the communication was flawless. Even though we did not get to meet Sergio, he arranged for a smooth check-in/out and even reached out to us during our stay to see if we need anything.
Apartment is located very close to tram and bus stops. It is about a 10 minute ride to the center of the city. Walking to the center will take about 30 minutes. There are shops and restaurants in the area.
The apartment itself is very interesting and artistic. Sergio has a nice collection of books and cd's. The apartment had everything we needed.
Overall, we had a pleasant stay and I would recommend Sergio's apartment for staying in Bruxelles.