I would have to agree with the above posting, I worked at Arizona School of English from September to December 2008 and had very similar feelings. The owner of the school is extremely hands-off and the director is extremely authoritarian; not only do they treat their foreign teachers miserably but they treat their local teachers even worse. In addition, the way they have set up their classrooms and student make-up in the classes results in disastrous consequences (i.e. Cramming 15 students into a class that can comfortably hold, at max, 10 students). They run their "school" as a business and not as a learning facilitator. Thus, the "school" director backs the student and not the teacher if any problems may arise in the classroom. There is a myriad of problems involved with this "school" that would take me longer than I would like to list here. If anybody has any specific concerns please feel free to ask me. On a brighter note, the people of Los Mochis are extremely friendly and accommodating but there is nothing to do with your free time in the city. I would recommend that you look for a job elsewhere in Mexico unless you are willing to live like a hermit in Death Valley like temperatures.