David did an outstanding job in helping us to have the best possible Tanzanian safari experience. He provided expertise and knowledge to see that our schedule fit best with the likely availability of the animals, maneuvered the vehicle so that we could obtain the optimal photographs, showed consideration & respect for other people and animals, offered assistance in moving luggage and other tasks, kept the vehicle in clean working condition, skillfully navigated rough unpaved & unmarked roads, worked long hours to satisfy our desire to maximize our time in the field…all while maintaining a pleasant demeanor. He drove over to help another vehicle that was stuck in mud, but only after first asking us whether it was all right. We felt like we were in competent hands. David is friendly and talkative but not overbearing. He is obviously very experienced, yet he often made it seem like he was just as thrilled as we were to spot a bird, cheetah, black mamba, dung beetle or birthing wildebeest.