It was a great experience. The only thing that bother a few people was that they were not informed that they had to pay for the tasting in each winery. A few people decided not to do the tastings because it was too expensive for a couple.
The only thing to make better would be a less 'rickety' van. The seats were great but too much rattling and shaking!
Very nice trip with knowledgeable guide. I would suggest skipping Sonoma. Too much driving to get there.