Very nice hotel and location
Great location just a few blocks east of all the restaurants and stores on M street in Georgetown and just a few blocks west of DuPont Circle. And just a five minute walk to the Foggy Bottom Metro station. 
Room was clean and very quiet - thick walls and windows. Nothing really special about the room, but it was what I expected. Comfy heavenly beds. Nice flat screen TV. Your basic chair and desk. Bathroom clean though a bit spartan. No tub. 
A bit dissapointed the pool was not open, but it was mid April, notwithstanding the 90 weather in DC while we were there.
Check in and doormen were efficient. The pitcher of lemon water in the lobby was a nice touch.
Did not eat in the hotel or drink in the bar, as most of the time we were out sightseeing.
I give it average because it was what I expected from a Westin - nothing more, nothing less..
But again, great location.