Good Hotel with excellent view on the top floor. We stayed at 603, but I think the top 2-3 floors all should have great views. I added some pictures, so you can see what I'm talking about.
The staff was very helpful, they even helped me repair my suitcase, as it fell to pieces when we arrived at the Hotel.
The hotel is located smack in the middle of three metro's, all about 4-6 minutes walk. Anvers, Cadet and Poissonnière.