It's quite a comfortable and spacious flat for our family of 4 including 2 kids, the pictures Vince had in the listing don't do enough justice, the flat is full of characters. There seems to be good entertainment system and projector but we didn't use. The toilet is in a separate room with a small wash basin and window for ventilation, the bathroom is quite modern with large shower although it drains slowly. It was hot the days we stayed & there was no a/c so at night time all the windows at the front and rear had to be left open with the fan running high. The tiny street is quite noisy at night but we slept through. The full heigh windows at the rear can open wide but there is only 1 guard bar at waist height so it's a bit unsafe for the kids as they can easily fall out. The flat is on 2nd floor, the 2 flights of stairs to get up there are quite narrow and steep, just a little uncomfortable to take heavy suitcases up but we managed with Vince's help.
The location is quite good, a couple mins to the metro and about 15 minutes walk to the Grand Place, Vince has some very good laminated guides with lots of useful info and suggestions.