The Hyatt Regency Reston is absolutely gorgeous and in an amazing location. The hotel is surrounded by small shops and is just a few blocks from major retail stores. Its location within the City Center means that there is plenty of free parking and very little traffic. In fact, there are pedestrian streets on two sides. Not entirely sure you would visit Reston for pleasure (The area is almost exclusively corporate campus for companies like L-3 Communications, Roles Royce, Microsoft and Oracle) but I highly recommend the Hyatt for business travel.