I went to D.C. with a few co-workers for a business related event. My co-worker selected this hotel due to its proximity to the metro stop (Rosslyn) which is directly across the street.
The rooms are spacious and modern. The hotel is very quiet so you won't hear alot of noise from the hall into your room. We ate at the restaurant a few times for the breakfast buffett which was great.
The hotel is close to many restaurants which you can walk to. Free wifi is available in the lobby area. Once up in your room you have to pay for wireless. The hotel is expensive since it is Hyatt and in the D.C. area.