Under renovation, quality staff, decent sized room.
We are Gold members with Hilton and upon arrival we were upgraded to the executive floor. Our room was nicely appointed and refurbished. We didn't hear any construction noises. The gym was large and had lots of equipment. 
We did notice that room service was quite costly and slow. We came from the Hilton New York and noticed that DC doesn't have much of a night life and we couldn't find anything to eat around the Hotel. Its location is great within walking distance to the attractions, but most things around close at 6pm. Overall if we return to DC we would stay here.