Truly a great experience made easy by Carlos. The Blue Line from Downtown stops right in front of the McDonald's meeting point and boarder patrol is right across the street. Carlos is a great guy who is very knowledgeable about the city/food/history/etc. He was able to customize the tour to make sure I got to eat and see the things that were most important to me. If you're thinking of taking one of the tours with this company, I would definitely recommend you do so - it is so easy to get to from SD, a tour is only several hours, and you get to experience a whole other city, rich in culture, with great art & food.