Very lovely home, spacious and well-decorated, and conveniently located. We stayed with our family of 5 - two of our kids had their own rooms and the third slept on the daybed in the piano room, which was perfectly comfortable for him. (As a note: the piano works and is well-tuned, so if you have the need to practice piano during your stay, it's available!)
We appreciated that the main bathroom had a jacuzzi tub, and our kids loved the aquarium fish and the view from the balcony. There is a nice desk and office chair setup in the master bedroom if you need space to set up with a laptop during your stay. The wifi was great, easily good enough to stream TV and movies if you want to.
Kitchen comes with an electric kettle and sandwich grill. FYI, no coffee maker or toaster so if you want coffee, instant is the way to go. Neighborhood was quiet and safe - there is a Safeway just a couple of blocks away, and the location is reasonably convenient to downtown Seattle attractions.
One note - the parking space in the alley behind the house is extremely tight. If you have a larger vehicle (such as our Toyota Sienna minivan), you will likely not be able to fit there and will need to park on the street in front, which necessitates walking up several flights of stairs from the street to the house. That said, there is plenty of free street parking, as long as you are capable of making the climb.
Overall had a really great stay - would recommend.