This a very nice room in a very stylish apartment. I had a really nice breakfast which was made for me. Overall, great experience. In terms of proximity to major attractions - it's about a 12 minute walk to grand place from there it's 5-20 minute walk to everything else. 35-40 minutes walk from apartment to bruxelles-midi station. I had one backpack with me that was okay to walk with from the station, but I would not advise that you roll any heavy luggage for that walk (get a taxi/public transportation, etc.)
This was a great room to come back to after walking around the city all day, so thank you JP + A!