I spent almost 1 month at Antoine's place and if I ever come again to Brussels this is where I would stay too.
To start with, Antoine was so welcoming we got to the apartment: he met us on time, then a small tour in the apartment, and it was so sweet of him that he had payed attention to the smallest details (we had a box of pasta and sauces for the first day, some pastries, espresso capsules...).
The apartment itself has a very nice lighting, it is comfortable, cozy, very clean (including a big beautiful bathroom), and it is very practical with the availability of a dishwasher, washer, drier, fully equipped kitchen...
The location was great: 2 minute walk to the Etangs d'Ixelles bus stop from where you can take the Bus 71 in direction of De Broukère to go directly to the Grand Place, gare centrale, and centreville. Also the apartment is surrounded by great restaurants and markets.
Finally, Antoine was exceptionally always available for help and suggestions. He's an amazing host and person and I would come back here any time. This apartment lightened up my trip to Brussels!