The thing I like best about this trip was that I got to see wineries I'd never get to see on my own. All my other trips in limo's or vans through Napa and Sonoma paled in comparison to the beautiful places we got to see on our trip. We took our trip through the Dry Creek River Valley, and it was a excellent trip all around, and it was really satisfying to get to each winery after enjoying the ride. Plus, the convenience of having everything paid for in advance means you just get picked up in San Francisco, and don't need to bring anything with you for the day (aside for some cash to buy more wine!) Thanks Ari and Alissa!