On a recent visit to Seattle, I was able to check out the Delta Sky Club. It is a brand new club that is in between Terminal A and B. It is one of the nicer domestic lounges I have been in. it is two floors and very spacious. Lots of open and private seating with power ports everywhere. We were there for breakfast and it had a great spread of food for breakfast including a scrambled egg bar, scones, biscuits, muffins, homemade jam and cereal. There was an espresso machine as well along with mimosas or bloody marys for anyone who wanted one. I would highly recommend this lounge if you have a long layover in Seattle and have access to the Delta club.