I didn't know much about downtown Rotterdam, but let me just say this room is truly in the heart of the city. right off of Witt de Witte, a super trendy street full of great restaurants, and only a minute walk from Beurs, the only subway station with connections to all 5 of Rotterdam's subway lines.
I didn't needed to even rent a bike because everything is close and walkable. The Boijman's Depot and many other museums are within a 20 minute walk. Same with the waterfront and the Erasmus bridge. all major landmarks and social/cultural hubs are close by if you stay here. There are two major grocery stores 5 minutes away, and the price was great for my 6 week stay.
On top of that, the room is quite spacious and luminous, the kitchen & bathroom are very large, you won't feel cramped at all staying here. I loved the view with all the skyscrapers and interesting architecture around.
Lastly, Judy has been only kind, understanding and accommodating. I could not have asked for a better.