The organization was poor. The phone number given to contact tour guide is incorrect, unable to find the contact point, organizer called me and I had a very difficult time understanding him. Found the group in front of a Starbucks - not at the meeting place mentioned on the email reservation. Had a two hour wait to enter the security checkpoint. Spent all day rather than a four hour tour. We were touring on a holiday, so understand the crowds, but doing this on our own would have been a better choice. Tour guide provided tried, but hard to keep up with him in a crowd of thousands of people.