I did this ride last year with my wife. It was the second time I did the ride. The first day was really good. The second day seemed a little harder on the hills. It is really a fun ride. We also did the RSVP (Seattle to Vancouver, BC) which is a little shorter (180 miles), less people and very beautiful. We signed up for the RSVP this year but not the STP. Have a great ride, it is fun and see if you can join in some training rides with Cascade or Tacoma Wheelman's if you live south of Seattle.