Marcs Flat has the ideal size for a short trip as a couple or solo, and the location is perfect. The bathroom could indeed use a spruce-up and I found it pretty unusual that there was no hairdryer (!) but I guess that I could have just checked that beforehand. The place was very clean when I arrived and the check-in and -out were very easy, which is always a plus!
Be advised that the staircase is even for Brussels tiny and maneuvering a large suitcase up is a workout :-)