After seeing Tac's great reviews on Trip Advisor, we decided to book a day with Napa Tours. After completing an easy questionnaire about our wine preferences, he quickly sent back a suggested itinerary. When the number in our party changed from 4 to 6 before we arrived, he was extremely accommodating. We had a wonderful day which began at Vine Cliff (which was absolutely fantastic) and ended at Spring Mountain. Lunch at Cindy's Backstreet Kitchen shouldn't be missed. This was our third time using a car service and from this point forward we'll always book with Tac.