Both guides were great, Humberto spent most of the day with us. Extremely personable and easy to chat with, small group was great. We saw some sights, ate some excellent food, had chances to buy souvenirs, and got a feel for Tijuana. It felt very safe and was a lovely experience. The ONLY downside was the wait to get back into the US was insane, took us about 2 hours. Nothing they can do about that though.