We were totally impressed with Kai's knowledge, professionalism and down to earth approach to our tour. He made the tour fit our requirements exactly and we were so pleased with every aspect. Even our sore feet! He was prompt to meet us at our hotel and left us at the end of the tour, as requested, in one of Berlin's most beautiful Christmas markets. We would definitely recommend Kai to any of our friends for this tour, it was worth every penny. Thank you sincerely to Kai from Wendy, Maurice, Stuart, Katrina, Steven and Olivia.