We picked this tour for a group we were with, and noted the increasingly poor reviews that have been posted here. Nevertheless it looked to be the best of the bunch. However overall we were disappointed with the misinformation provided.
Our guide "Chris" was informative and had his patter down, however there were times when it was annoying. The first stop, at Domain Chandon was kind of a ripoff - they wanted an extra $7 for the "tour", and $10 for the "tour and tasting". The tour lasted about 2 minutes - "here's a tank, and here's another tank". This is NOT disclosed on the website when booking.
The rest of the tour was competent. The buses were the smaller type, and comfortable for the 20+ people aboard.
At the end of the tour, the group is dropped off at a ferry terminal north of the city, so you get a 45 minute hovercraft ride back to the city, past Alcatraz and with a great view of San Francisco. We were able to get off at Fisherman's Wharf (where we were staying).
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