We stayed at the apartment for 2 months during our internship in Seattle. We really liked that Krystofs Apartment is well maintained and clean - The kitchen is well equipped, all appliances are working. You unfortunately cant take that for granted in other AirBnBs we stayed before in the Pudget sound area, despite them looking good on photos. The only drawback from the apartment itself is the impact sound insulation, which is not the best.
The apartment is located in a quiet neighbourhood, supermarkets are not far away. The nearby interurban trail is great for jogging and cycling. Evening leisure time activities (Bars,Restaurants,etc.) require a drive to other Seattle Districts like Ballard/Captiol Hill etc.
Krystof and his wife are wonderful authentic hosts. They know the Seattle area well and can give you good advice on leisure time activities, good bakeries and so on. Even though we stayed in the wintertime we can imagine that a visit during the summer pays off even more due to the beautiful garden.