I live in Wallingford and work in Tukwilla (Boeing Field). If you can swing early/off hours the commuting is pretty nice. I get in to work around 4:45am and my commute is around 20-30 minutes in the morning. In the afternoon I normally shoot up 99 and am home without slowing down at all. Viadoom might put a little crimp in that for a few weeks but afterward I will be tunnel home every day.
As for living here, as others have said, it is spendy. I wouldn't trade the area for anything though. The weather is actually pretty nice compared to other areas in the the US. I don't have to shovel anything and I don't melt in the summer. The views and surrounding areas here are amazing as well!