The Santa Barbara Winery is a "must see" destination for locals and visitors alike. The staff members are super knowledgeable and friendly and the wine is good.
Keep in mind, you are not coming here for ambiance... the standing only storefront (no chairs), can't match Sterling or Rutherford Hills (how cool are those caves?!? -- another must-see!) in Napa, but it is on a side street with a patio set outside if you prefer to lounge.
Their tasting menu is great and provides one of the best values in town (an added bonus is the fact that as of this writing, you get to keep the Santa Barbara Winery engraved glass you use for the tasting).
Go today and Enjoy!
Pros: Super-friendly and helpful staff
Cons: Parking can be difficult