We stayed one night and the appartement is exactly like described. It is very central, you do not need a car to get around, public transportation is closed and you are in the middle of the city.
The communication with John & Ceca was fast, we had 2 smaller issues, solved in minutes.
The appartement is nice decorated, everything is there, WiFi is working well and we got a 250 MB SIM card for our phone so that we have mobile data access while wer are in Brussel. Nice & good service!
One hint: I do not really recommend a 4-person stay. 2 persons have to sleep in the living room and if someone needs to go to the bathroom or toilet, it is impossible not to wake up...
I can recommend the stay because most of the points were really great. Location, host, service and total at all the appartement as well.