Inconsistent quality and uncommunicative staffThe good thingsone of the few things it has going is that the position is home-based and output-based. As long as you meet the deadline, there shouldn't be an issue.
The challengesYou're required to review one whole lesson, which comprises a total of 5 documents, namely : the teacher's guide, the presentation slides, the assignments/drills, the answer key and the study guide for such a small amount. You're paid per lesson, by the way, so after finding out just how small you're getting it's a bit demotivating to work hard.
The HR staff in charge of payroll is mostly unresponsive to queries even during normal working hours.