Small group, max 6 people, makes for a nice time. The tour guide was knowledgeable and he focused our more experienced group on family estate wineries. He was able to discuss lots of details including microclimate, terrior, etc. and how the various methods of growing work in different areas. Most of his advice was spot on and we enjoyed his commentary; when we were at the facilities, he did not intrude at all, and yet was friendly. He provided cold bottled water on this hot day and a picnic lunch from a local deli was provided. We enjoyed ourselves very much!