Great location! Especially if you're arriving via Amtrak, which my 11-year-old and I did -- just a quick walk over the tracks, down the stairs, and across Naito. But it's also within walking distance of MAX transit stops and Lan Su Chinese Garden, so even without a car, we were easily able to reach any place in the city that we wanted to explore.
The place was immaculate, the kitchen well-appointed, and the bed super comfy. If you enjoy urban river views (we do!) there's always something interesting to watch from the windows - boats, Union Pacific trains, MAX cars, geese, pedestrians on the greenway below.
There was an issue with the washing machine (it happens!) during our stay, but response and communication was great.