The tour was ok and the driver very friendly. However, it's a veeeery long drive just to spend a couple of hours in Yosemite. Not enough time to do much in the park. Unless you have a LOT of free time, there are more interesting things to do closer to San Francisco.
Would recommend this tour. Yosemite is a beautiful site to see!
Tour guide was great. Park is beautiful but way too much to try to do in one day. With the drive to Yosemite, the drive once we were in the park, and waiting for the shuttle to take us to the hiking path we didn't have much time to hike at all. Tried to take the path the guide recommended to mirror lake but had to wait so long on the shuttle we had to turn around. Never made it to mirror lake. Save Yosemite for when you are closer so that you can spend the whole day hiking and go in the off season so that the shuttles aren't as crowded.