For Conferences Only
I was staying at this hotel for a conference. It has extensive space for large gatherings and hotel staff are efficient, experienced and friendly. Hotel restaurant food was better than expected: my steak was very edible.
But this is not a hotel I would choose for a holiday, in spite of its good location and only 7 minutes walk to the metro. The reasons are as follows. 
The hotel is not pretty. While it is maintained and everything works, the corridors feel ugly and the room doors are of ugly green metal. I had a tour of The Pentagon and its corridors and doors were more attractive the this hotel's.
The hotel has an ok gym, but hotel guests are charged 10 dollars per session. I have never stayed at a hotel which charged guests for using its gym.
Perhaps surprisingly for a conference hotel, the bar seemed quite dead.
Luxury, charm, a good place to relax, drink champagne, be among nicely-dressed people(!) - for all these things you should go elsewhere.