We actually had three tours through this company in one week- all with Dan as our tour guide. He was witty and extremely informative, as well as patient with our two young kids. My son kept interrupting him and we were very impressed with how he could both pay attention to him and then steer the conversation back to the tour. We actually asked to modify this walking tour to include a visit inside Westminster Abbey and the tour company got back to me right away to make the adjustments. They were very kind and attentive. Overall, I highly recommend this company and Dan!