Wow...Just wow.
Booked 7 days on Hotwire and got a killer deal. It's located near the airport in the middle of a residential neighborhood, so I wasn't sure what to expect. Checked in and was dismayed to find a $12/day parking fee. However, the Cedarbrook does have free wifi, free breakfast and free ice cream, bottled water, chips and candy in the living room areas. Needless to say, this made up for the price of parking. 
Rooms were incredible and provided a beautiful view and a true lodge feel. The room had a large desk area to get some work done and a chair and ottoman to read a book or the USA Today that gets delivered to your room. Double rooms are fairly large and bathrooms are gorgeous.
Each building has a large living room area stocked with complimentary snacks. We grabbed a pizza and watched Shark Wranglers one night. Every time we came back to our rooms, our kids would stop off and get ice cream and malted milk balls and we'd grab a bottle of water every time we were headed out. 
Staff are incredibly helpful, whether dropping things in the mail, delivering mail to our room, fetching coffee supplies. Cheerful and helpful.
Great fitness center with free weights, about 5 nautilus-style machines and plenty of treadmills and ellipticals.
Breakfast was okay, continental style. No meats, waffles or cereal for the kids.However, all of the other amenities make this easy to overlook.
while most other resorts will nickel and dime you with $14/day WiFi and the $4 bottle of Evian in your room, the Cedarbrook makes you feel like you're staying with friends and you're welcome to whatever is in the fridge. 
We will certainly stay here again the next time we're in Seattle. I wouldn't stay anywhere else.