Pros
EF has an excellent trove of teaching material. They furnish teachers with both primary and supplementary material that work well with several teaching techniques such as the CELTA. Additionally, they have an excellent online learning platform called English Town that is highly engaging and works well with their printed material. Overall, EF has a robust bank of pedagogical resources that takes the guesswork out of lesson planning.
Cons
Contributing to their significant profit margin, EF has engaged in a policy of paying their teachers extremely low wages. In my area, they are among the lowest wage employers despite having the largest overall sales numbers. Additionally, mid-level administration (not-including executive officers but rather branch managers) are not really concerned with establishing a positive social culture. Political infighting among administrators, vying for advancement, creates issues for employees (mainly faculty) that mostly are just interested in teaching but must always be careful about where they plant their flag. The result is a highly political environment that make job-security an issue. Faculty is regularly reminded in ways both subtle and overt that they are replaceable. Overall morale is, therefore, quite low.