The hotel itself is really nice. Exceptionally close to the EC buildings, and with small supermarkets and restaurants all within 1 minute walking distance.
The ambience inside the hotel is exquisite. It is calm, dimly lit, and with a wonderful aroma in the lobby area.
I cannot comment on breakfast, as i did not have it.
The room was clean, and well provisioned, with very friendly cleaning staff. The room also has some nice art, and beautiful pictures of exquisite automobiles. In my room were photos of ~€10 million euros worth of classic car. Lovely, if you appreciate this, as you do not get to see these cars outside of books and museums, normally.
The only comment i have is that on one evening, i asked the front desk to print me 12 pages of black and white A4, which I needed for work the next morning. I offered to pay for this service, of course. They refused, and said i should go into the city centre (three stops on the metro). I was quite surprised by this. I then asked the next morning (with a different front desk operator) and, of course, they did it free of charge, and with a smile. This was quite surprising!