Gilles was a great communicator and very friendly. There are a few quirks with this studio (like kitchen faucet being a little slow) and he communicates them with you when he gives instructions on getting in. Check-in was a breeze.
It is located fairly close to Midi train station (10-15 mins walking) and in walking distance of most of Brussels main attractions (mannekin pis, grand place, etc). There are also some really neat second hand clothing stores and cafes just down the street. A couple things to note is that the staircase getting up to the apartment is really narrow (smaller suitcases can easily be carried up) and that the other tenants smoke in the building.
I had a good stay and enjoyed my time in Brussels.