Nice historic hotel.
Stayed there for a work conference on March 28-30 (3 nights). 
Overall my stay there was average. The hotel was a very nice place.
Rooms: large, but the bathroom was small with little counter space for items. A little banged up. (doors, locks, etc)
Beds: comfy and nice.
Free juice in the morning was great. Delivered every morning for us as requested. 7:15am
Front lobby: really nice!
Staff: very friendly and nice.
Location: depends on what you require. $15 cab to National Mall area. 15 min walk to National Zoo. Lots of food choices in the area.
Negative! The internet. The worst internet connection in all the hotels i've stayed at. I was there for a conference and required internet access. It was impossible to do anything. We called tech support twice and was told nothing could be done because it is a large hotel. I've been to bigger hotels and everything is good there. Tech support said connection btwn 2.0 to 5.0 mbps was great for wireless. (what?!) I usually get 54 mbps speed everywhere else.