The place is in an ideal Seattle location as one can easily walk to Alki Beach and the neighborhood is beautiful and peaceful. The host offered quick responses to my request to check-in early. And the place was clean and orderly.
Take the host's warning re: noise traveling from upstairs seriously:
"Please note that we do not have additional soundproof insulation between the apartment and the rest of the house. We do our best to be quiet (we don’t have kids or pets). However, you may occasionally hear our footsteps."
You will certainly be on the upstairs resident's sleep-wake schedule, as footsteps and voices can very clearly be heard, and that noise was impossible for me to sleep though despite earplugs and a white-noise maker.
Overall, it's a great accommodation I would recommend! I was especially impressed by the lovely garden and how much light it gets for a basement apartment.