This is a great space to stay in to explore Seattle's historic Pioneer Square neighborhood, and to get a sense of why Seattle has some soul. Merchants Cafe has been there since 1890, and this room feels like a part of that history still. The old hotel upstairs (which is the space you're staying in here) has tons of character, and is a really good hub for either exploring the real Seattle if you are new, or a staycation convenient to nightlife and sports if you're local-ish.
Also the amenities are really great for a short-term rental: washer and dryer, plus kitchen with everything you need. And Merchants (the bar downstairs) gives a 10% discount on your bar or food tab.
The place is a screaming deal for the neighborhood: The W, 4 Seasons, etc. are right up the street three or four blocks, are less convenient to the stadiums and nightlife than Merchants, and cost three times as much with no ability to cook your own food or wash your clothes.
If you're looking for gleaming and new this is not the place for you: it's been there since the 1890s and has not been gutted and rebuilt. It feels like a detective movie set with exposed brick, high ceilings, cool old-timey hallways, transom windows above the hall doors, etc.
Also yes the neighborhood can be a bit loud at times, you'll possibly have one vagrant screaming in the park across the street for a half hour per night (better when it's cold actually, they are less present and less feisty). Bring earplugs, and it's no big deal. If you want perfect quiet, don't stay in Pioneer Square, and honestly don't stay in Seattle period . Bellevue is very nice if you just want to go to the mall and fall asleep in a suburb.
If you want a really cool Seattle experience at a very affordable price, this is the perfect spot. Highly recommended!