Our group of 6, mostly in our 60s, really enjoyed this tour. We saw 7 miles of the park with stops for pictures and a bathroom break. Our guide provided a good commentary of all the sites. After the tour completed we explored a couple of the buildings we drove passed. All of us would Segway again, so don't be afraid of the technology - it is very intuitive. The guide took lots of pictures as we toured which leads to my only complaint - instead of simply sending us a link to the pictures, they post them on Facebook and you must "like" the site before you can see them. As soon as you "like" them your Facebook page is inundated with ads - I hate that. This is the only company that provides tours of the park, but if you wanted to tour the streets of San Francisco I would suggest another company. Most will simply send you a link to the pictures.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC