Pros
I started working here in college as a part-time job teaching ACT prep. I had no intentions of going into teaching, but it's an easy job if you are personable and friendly. Training is paid, and you can be trained in multiple types of tests, including grad tests if you are a grad student. Great pay as well, for a part-time college gig. If a teacher is good, he or she can also tutor which is at higher pay, and in my opinion, better than teaching a class for both tutor & student. Also, I've known several people to be promoted to management/office positions full-time. The company is also pretty laid-back, as long as you are a good employee! The people in management at my local office were fun, smart people, great at managing the teachers.
Cons
Not consistent hours, because you chose to pick up a class or tutoring student as they come.