Visited it on the same week as it was opened - everybody in Washington was queuing to see the roof terrace! There is a nice bar on rooftop, you can (barely) see White House there. Problem was, though, that so many 'outsiders' wanted to visit the bar that hotel customers didn't have a chance if not booked in advance.
Lobby was kind of a disco in night, as they tend to be in W hotels...
Room was nice, silent, somehow small though - no bath (fantastic, who on earth would want it...?!) but very comfortable and functional shower.
If you arrive by car, drive north on 15th street, turn right to F street, stop in front of main entrance (on F street, not on 15th street), and let the bell boy valet park it.
hotel reviews