Yvonne was a fantastic guide. She was really passionate about her city and enjoyed showing it to us. We booked on fairly short notice so there was no time to customize the tour before hand but she made sure that we were seeing the things we wanted to see before we went on the tour and continued to confirm while we were on the tour. She gave us lots of ideas of further things to do while we were in Amsterdam and even checked for tickets for us after our tour was over. It was an excellent tour.