Used the tour service for 2 days. First tour guide was fantastic. So much information. Second day different guide and different attitude. The guy was screaming at people in the streets as we were driving by different sites. Also kept asking those on the tour questions about the tour expecting an answer from someone. When a person got the answer wrong the guy shouted at the person “ you gotta be freaking kidding me “ and gave the answer to the pop quiz. Very cringeworthy!Also tours were not very punctual supposed to be every 20-30 minutes but ended up being 30-40 minutes. Kept asking the reps when the next tour would arrive and was continually told next 2 minutes which ended up be way longer. With today’s technology such as Uber it should not be that hard to have an app that shows real time when the next bus would arrive, this would save you having to stand around for long periods wondering if the next bus will arrive shortly or not. This would help tourists not waste so much time waiting around. Finally when we wanted to get off the bus we headed for the only door that was open and the driver was shouting at us for wanting to use that door. They were expecting us to know how to open the other doors to get off..As if!