Serenia was very nice to deal with and fast to reply to any message. The studio has a patio outside that I could access through a glass sliding door, and the large windows and curtains made it light and pleasant. It is large for one person and just fine for 2. Good wifi and ideal location near the EU, in a quiet, safe neighbourhood. I'll try to come back with my wife as I still have to see a lot of Brussels and it was an excellent base.