My wife, daughter, and myself stayed at this hotel for four nights over the Christmas holiday. We had booked a one bedroom suite, but were generously upgraded to a two bedroom suite that featured an oven. The room was spacious and accommodated our family nicely. Dinner is served in the hotel Monday through Thursday at no additional cost. We ate at the hotel on the Thursday of our stay which was Italian night featuring spaghetti and wine. It was a good meal.

The hotel is part of a large shopping center which also includes a Wegmans and a Buffalo Wild Wings. The Wegmans is the best grocery store I have ever been to and the Buffalo Wild Wings is a good place to grab a beer with some fried food. There is also a Target which can be used for last minute (Christmas) gifts.

When searching to book this hotel, make sure you include "28" in your search, or you may end up with the Chantilly property. Also note that some places list the hotel as being in Dulles, but I think the address is technically in Sterling.

Stayed here for 10 days on a business trip. Very convenient to the Dulles airport, expressways, shopping, and restaurants. The hotel is located on the end of a shopping center containing a handful of pretty good restaurants, plus an awesome Wegman's grocery store (with a cafe!), and a Target. You can walk to all those places from the hotel.

The rooms are suite style with comfy beds, remodeled kitchens, dining table and sitting area. Hotel has an indoor pool, hot tub, gym, and very reasonable laundry facilities. Breakfast is included--the usual expanded continental fare--plus there is a social hour with drinks and food on week nights.

Would certainly stay here again.

Stayed overnight late October 2011 on way out for an overseas trip. Picked up at the airport in an SUV driven by one of the front desk girls, a new one for me. As soon as we reached the hotel and entered it, smelled the fragrant aroma of spices. Apparently, the dinner (besides the breakfast) is also included in the stay and they had their Bollywood night including fragrant basmati rice, curried shrimp and chicken etc. We showed up around 20 minutes after the dinner and despite our request, were denied a meal on the house (1 star deducted). We were upgraded to a double suite (1 star added) and then were also dropped at the nearby Dulles mall (and picked up) for an outstanding Afghani/Pakistani BBQ dinner and cheesecake from cheesecake factory across the mall. The breakfast was very good and serving staff was very courteous. We were again dropped at the mall and picked up with a smiling service and subsequently promptly dropped at the airport on time. The hotel is located in a strip mall with a large neighboring grocery store and is conveniently located from the airport and Dulles mall. Very nice stay, would stay again if needed.

I stayed in Residence Inn during my travel to Dulles on business, I got special rates through my company.
Like most hotels in the US, this is a no nonsense hotel, unlike hotels in India where you have 1 person to carry your bags, another to check you in etc... there are only 2/4 folks at the reception at any given time, who also drive you around to the town center if needed.
Pro's:

Great room, with complete kitchen, living room and bathroom (its an Inn).
Fantastic indoor pool with Jacuzzi
Good location
The rooms are clean

Con's:

The food spread during breakfast is not great
Very limited food options at the frozen food counter
No room service

Overall, fantastic place to stay!