I stayed for three nights in Kirsten's flat. The flat is exactly the way you see it in the pictures, modern and very well layed out. Communication with Kirsten was very easy and she welcomed me when I arrived.
Uccle is easy access to the train station and main sites of Brussels. When I arrived Kirsten showed me a folder with everything one might need: different maps, information leaflets on what is going on in the city and other useful numbers that one might need.
I had made the reservation quite last minute and hadn't read the exact check-out time, which is 9am. However, they were great in finding a solution and accommodating me when I needed to leave a bit later. I would definitely stay there again (and would make sure to be out of the flat by 9am!)