Avantages
Flexible hours, do the work whenever and wherever you want
Inconvénients
Expect having to do very high quality work without receiving pay for the time it takes to do so. They pay you based on estimated grading time, but to deliver the quality of work they expect, it is almost impossible to do within that time frame. Very inconsistent feedback for the graders; some love one thing I do, others hate it and request revisions. The people who review the graders' work are very nitpicky always want some sort of tiny change, and you do not get paid for revision time. It is just not possible to read a page of a student's writing and then write (at minimum) three paragraphs worth of very personalized high-quality feedback for them in under 6 minutes.