I spent a couple of days here for a conference and found it more than adequate. The rooms were of typical Marriott quality and the service was extremely attentive. It's a large facility with several conference rooms as well as a cavernous Grand Ballroom. As you might suspect, there's ample parking available (not sure whether there's a surcharge or not). It's just across the street from the Metro's Red line which makes it very convenient if you want to use the hotel as a base to explore Washington and surrounding areas. There's also a small mall across the street containing a MacDonald's and a 7 -11 if you chose not to use the hotels restaurants--which are quite good. The room TV's, by the way, have a connection console that allows you to plug in your own devices (laptops, etc) if you want to watch something other than what's available on screen.