Great location, easy to walk to public transportation, supermarkets and restaurants. If you are staying to check out Seattle and you don't plan on doing any cooking, this is a great place to have as your home base.
If you are a light sleeper, bring ear plugs. Due to the location of the bedroom, it was pretty easy to hear lots of noise from the back stairs, and unfortunately a fair amount from the apartment above. As a business traveler, this did disrupt my sleep on occasion.
If you are staying for a longer visit and plan to do some cooking, just be aware that you'll need to pick up everything from the store. The only basics that were provided were salt and pepper.