Vantaggi
Pay is decent. Also, if you are new at teaching, this company can be a good place to experience and learn until you find your true color as a teacher. They also have good resources such as website/online learning program and so on.
Svantaggi
No breaks. Also, during summer/winter breaks, you have to teach for literally 9~10 hours a day non stop. They do have a very flash website and system but from an intermediate level (which is from there LSA level), you'll see how the content doesn't drive kids to actually learn English. (It sort of relies mainly on meaningless memorization.) Lastly, they have a huge level jump at the end of their Elementary school curriculum (when going to MSA level from LSD level). The books and debate topics are simply too much for majority of kids.