As it turned out, this ended up being a private tour, as it was just myself and my wife, being led by Emily. Emily was extremely friendly, ensured we had a safe ride, and provided lots of fun, informative detail along the way. Clearly, Sonoma Segway has strong ties with the wineries (and Vella Cheese) it visits...everything went completely smoothly and we felt like "VIP's".
The segways were really fun to ride, it look about 3 minutes to get them all figured out and then it was completely natural to ride and control. At the end, we got a "victory lap" around the parking lot where we started....and felt like I just wanted to do the whole route one more time!
Way to go, Sonoma Segway, you run a great shop, and we'll make sure we'd do this again next time in town!