I am staying with them right now at rue de la constitution and from my own experience there is no problem with that company. The room is pretty new with a new fridge , internet works, and nothing special to mention, except some guys leaving their mess in the central area but it's hard to blame someone in particular.
As for the post above it mentions a lot stuff like "we", "a friend of mine"," fellow tenant", "a recent tenant" but very short on facts - it sounds like a disgruntled tenant full of hot air who was kicked out for some reason. Personnally I visited the residence myself 2 weeks or so before moving and it was fine. I wish I had a larger room but I dont have the budget.