Cute place, and the waterfall park next door is lovely - especially when you can have the windows open and listen to the water flowing. Kia graciously let me drop my bags before check-in so that I could explore Seattle without having to tote everything around with me. She also had great suggestions for places to visit and food to try. Pioneer Square is very convenient to quite a few of Seattle's main attractions (Pike Place Market, the Seattle Aquarium, the ferry docks, etc.) -- and there is a light rail stop close to the apartment.
Be aware that older buildings in Seattle rarely have air conditioning, so you have no climate control on warmer summer days.