We went on a modified version of Derek's Gateway Tour, which was enjoyable. I'd like to say Derek was friendly and willing to make the changes we requested. Also, he was a great driver. A great driver and conscious of time. He was knowledgeable about the area and shared details about what we were seeing. He also spoke without such a thick Scottish accent that understanding him was easy. Derek helped one of our group obtain a RX after dropping the rest of the group at Stirling castle. This errand was beyond the scope of the tour details, but he was conscientious about making this change work well for everyone so that everyone actually got to see Stirling castle and get the needed rx before both places closed. I suggest to get the most out of your tour, plan with your group what you want to see, Derek knows the area and can visit sites in a logical direction. I recommend Derek!