The main difference in my service is the price, it's less. You can certainly pay more with almost any other wine tour company. I charge a flat fee of $400 for the day for up to 7 people. Even other wine tour companies think why are you charging winter rates during the busy time of year?
I have other vehicles for more than 7 people at a higher rate of $600 for the day in a van or stretch limousine. I also can do a lunch at a winery that I cant name unless booked for $600 total and includes a complimentary lunch. You will not find a better deal in Napa Valley.
The good news is you are not sacrificing quality of service as I am recommended by the winemaker for arguably the #1 wine in the United States ask me who? Also, the #1 hotel in the United States recommends me for their Napa tours. Again, ask me who?
As a former owner of Reverie Winery on Diamond Mountain in Calistoga, I know the wineries. I know more than your friend,uncle, cousin, distributor, or retailer. I love small wineries. My slogan is if you can find it, you don't need me. Meeting the owner of the winery is a better experience than their sales person.