The Watertown is comfortable and clean and has some nice amenities as others have listed (coffee, water, free parking). I have the same complaint on the linens as Snowbird. They were very loose and starchy where they easily slipped off the bed.
Location was easily accessible and you could walk to restaurants in Wallingford and the U District. They also have some bikes that you can borrow, but the Seattle weather put a damper on that plan. Maybe next time, we'll be back.