Artiom answers messages very fast and the check in was extremely easy. His apartment is located in a good location (1,5 km walk from Brusses Midi and 2,0 km walk from the Grand Place, both reachable by metro after a couple of stops). The apartment has everything you need for a short stay (I would say up to 3 days). Things that could be improved: a couple of pillows more, darker curtains (there is a lamp post outside at the height of the apartment that really lights inside at night) and the sofa bed was a little bit uncomfortable to sleep on.