We found the Doubletree to be good for what we needed- a place to stay when our plane arrived late and we didn't want to start driving anywhere until the next day.
The airport shuttle was very good- better than other hotels I have stayed in. It seemed to ALWAYS be running, and was very convenient. We took the shuttle from the airport, and then back again to pick up our rental car (save the parking fee).
The hotel was fine- a big hotel by the airport. I didn't expect much, but some things were better than average. The view we had was of some large trees and some people's backyards- better than the parking lot for us (but I wouldn't want to live there!). The cookies are, of course, one of our favorite things about the Doubletree chain.
If I had been wanting to stay for more than one night, be close to anything interesting (other than the artificially created world of SEATAC), or wanted to get some business done, this would not have been the best hotel. But it is fine for what it is- a quick, convenient, comfortable stay by the airport.
One thing to think about- this hotel is used by a lot of conventions. When we were there, there were a bunch of real estate agents who were getting a bit rowdy. We couldn't hear them in our room (thankfully), but they were pretty loud throughout the hotel. The hotel is big and busy, so it always feels like there is some commotion going on in the common areas.
We did book directly on the Hilton chain website and got a rate of about $89. It looks from other reviews here like you may be able to do better on Priceline if you don't want your Hilton points.













