We spent 4 days at John's apartment and it was great. The apartment is managed by the agency Pillow and the made our check in and check out very easy. The apartment was perfectly clean and had all the items we needed for a pleasant stay. Also they included a "welcome pack" with some snacks and a very complete folder with specific instructions for the home appliances and some useful neighborhood tips: groceries, coffee shops and nice restaurants.
The apartment is conveniently located close to the most interesting areas of the city and very well communicated. We were in a walking distance to the Pike Public Market, to the Downtown and even to the waterfront.
I will definitely recommend this apartment for spending some days walking around enjoying the city of Seattle.