If you're considering a guide for climbing in Mexico they are the ones! I researched a lot and found it hard to get any info. I wanted to climb somewhere reachable from Mexico City. Once I connected with Simeon via email I finally had a flood of information from him! Simeon and his guides are so crazy knowledgeable of Central Mexico (and then some, they know crags all over the world and have set routes all over). Our guide Carlos Mac was so great, we went out two days with him and learned so much! He also took some really great photos of us which is great because I did NOT want to take my phone out much when we were 200ft in the air. We've both cleaned and lead sport routes before, but Mac elevated what we knew to another level. Now we're more confident problem solving and even are comfortable to start practicing and preparing for multi-pitch. If you're looking for a trustworthy knowledgeable guide service seriously, these are your guys.