The location is definitely the selling point. Area felt safe, even at night. Sunset views on the beach, lots of restaurants and bars nearby within walking distance. Lots of scooter and ebike rentals available. It did take us an hour to get into downtown Seattle via public transportation but we didn't mind.
The bed and pillows were comfy. Lighting was great. We were able to cook a meal with the supplies provided and view the beach through the window while we ate.
Good hot shower.
We checked in on a Saturday night. It was pretty noisy outside and above us. However it seemed quiet the rest of the time we were there (til wednesday).
Aside from a trash bin they also provide a recycle bin and compost bin.
Definitely worth booking if you plan to spend time at the beach. I would recommend this airbnb.