Jonnie's tour was wonderful. I contacted Jonnie very late Friday night and he was more than willing to accommodate my request for a tour the next afternoon. I ended up with a personal tour, because no one else had signed up for the afternoon walk. I was running a bit late and public transit was not working with me, but Jonnie stuck around and waited for me. He then took me on an informative and entertaining walk. I learned a lot and saw tiny bits of London I would never have discovered on my own. I highly recommend this walking tour!