Pros
Most of the students are motivated and a pleasure to work with. The material is interesting for the first few months but then gets stale. It is a good way to brush up on the fundamentals before starting graduate school or as a real teacher.
Cons
Training takes a month so don't expect to start immediately. Some of the management really only cares about metrics. Certain center directors try to maximize their the student to teacher ratio (3:1 is the max) by cancelling tutors' hours or rearranging classes so that there are 2-4 hour breaks in the middle of the day. This leads to poor retention and makes it difficult to have enough hours. If you work 5 days a week, it's only 30-32 hours during the school year and 40 during the summer. Health insurance kicks in after 1 year of working with at least 145 hours per month averaged over a year (including holidays). It's basically impossible for tutors to get it. Raises are twice a year and up to 3% based on performance. I'd only recommend working here for supplemental income or for someone who doesn't mind working part-time during the evenings.