We extended our tour to 4 hours to take advantage of a layover. The tour guide was very informative and backed all the experiences up with a history lesson.. I thought we saw a lot of Seattle in 4 hours and decided that from now on, I will want to have a tour of a new city if I'm going to be there a few days, just so I know what sights I want to go back to for a closer look. My only other comment is that I thought the traffic in Seattle was some of the worse I have ever been in and our driver knew all the shortcuts....still really busy. Need to allow plenty of time.
This tour was outstanding. We were able to get an excellent overview of Seattle and our guide was very accommodating to meet our individual requirements. He adjusted the timing of our stops to allow extra time in places we found especially interesting and even changed the end location so that we could have lunch at a special restaurant near the Aquarium. On another day, we re-visited the city with local friends and found that we were indeed well versed in Seattle lore and were very comfortable in our Seattle Highlights knowledge. Highly recommended.