Serenia was very nice and helpful. I asked her few question before arriving and she gave me quick answer.
The flat was well equipped include kitchen materials and enough big for staying one person. I stayed Brussels for my short trip but I think here is also suite for business person. The area was quiet and safe, close to European Parliament. I had to walk about 10 min from station but it's not so bad. There is nice small park to walk through.

If I have chance to come back to Brussels, I would like to stay here again!