I contacted five tour operators and ended up going with Alex for two reasons: his extremely rapid response time, and his frank communications style where he frankly gave me his opinions on various options. I'm extremely glad I picked his company: he made the whole trip turn alive and was an amazing guide. I can't imagine any other guide could be more knowledgeable and more dedicated to explaining what really happened, from big-picture stuff to trivia. It's clear that he and his team has dedicated themselves to the Zone and to show it to others. Extremely memorable experience and i can 100% recommend Alex!