This place was amazing. It was unbelievably close to 2 (aquarium and harbor tour) of the 5 city pass activities and a quick monorail ride from most of the rest of the city pass activities (excluding the zoo which was an "or" on the pass). It's also incredibly close to the downtown ferry station. It was one flight of stairs from Pike Place which includes so much to do. We also walked to Amazon go which was awesome.
This place is incredible if you want to save the cost of a rental car and it's pretty easy to get there by the Link from the airport. Although the location was extremely central, there were no issues with heavy traffic noise or loitering people. The path right outside the building was another nice add on because it was perfect for a stroll.
NJ and Sandy were also super helpful and responsive for booking and everything.