I had the pleasure of spending 8 nights here for a work related event and was really pleased with the staff and valet of the hotel who were courteous, incredibly nice, and expedient with any demand.
There were great rates on hotel sites, I would pick them over many other hotels and the cheap rates were an added bonus. The hotel is within a block of some great restaurants (lebanese, japanese, indian, mexican) and right behind the gorgeous Rock Creek Park which is a quick way to bypass some DC traffic if headed to the airport or over the Arlington Memorial Bridge.
The brunch buffet on the weekends is an absolute deal. They have a waffle and omelet station as well as plenty of fresh fruit and juices.
Join the Omni Rewards program for free and you get free wifi, free juice/coffee/newspaper delivery to your room EACH morning, free shoe shining, 2 free pressings each day, etc. It is one of the better hotel rewards programs I have come across so join online before you show up to save time.