Very cool place in an amazing location. The loft is artfully and thoughtfully designed, filled with art and books. Architecturally very unique and exciting. It's a loft, but the way it is split you can have someone sleeping up top while someone is watching tv or reading below, and it feels separate. We were there in November, so we didn't use the outside space much, but I can only imagine how great it will be in the warmer days, looking at the Needle.
It's walking distance to the Seattle Center, and the neighborhood is full of great restaurants.
Would definitely book it again!