Our group included people new to San Fran, as well as a couple veterans who have visited the city several times, and we all loved it. At first, I were a little skeptical taking my grandmother on the tour (who hasnt seen a new movie in years), but she absolutely loved it.
It was well paced, included all of my movie and TV favorites (James Bond, Dirty Harry, The Rock, Indiana Jones, Full House). It was great how they could show you the clip from the movie, and then you get the chance to see it in person. Some of our favorite notable stops were City Hall, Golden Gate park & bridge, through the rich neighborhoods of Pacific Heights, Mrs. Doubtfire's house, and many more. Our guide was awesome, knew his stuff, and was very helpful with questions and recommendations. It was also great how they picked us up in front of our hotel (the Fairmont).
Bottom line: great tour, great price, doesn't take up your whole day, and it shows you everything you could ever want to see in San Fran. No need for any other tour. Do it!