I spent a week on the West Coast and booked 5 tours from Viator. Out of all those tours, this one had the best tour guide Bryan/ Brian. It turns out the other people on the tour couldn't make it so I was the only one. I was disappointed because I wanted to book tours to meet other people too and wondered if it would be uncomfortable doing the tour alone, but I was fortunate enough to have Brian as the tour guide because he was so polite, easygoing, enjoyable, and full of information. I feel like it was a benefit having still done the tour alone, not a loss at all. We went to so many places, got to make a few great stops, and I learned so much about San Francisco. The snack involved was local food and a nice touch to the tour. Looking back on my vacation I'm just so appreciative and thankful for Brian and his tour. Would recommend to anyone.