Pros
You work with other college graduates instead of others. Everyone is nice to one another. Its an income that is steady while you are there. Can be 37.5 hours work per week. You can use some of the knowledge you have gained elsewhere. Most test rubrics are clear enough to qualify on in your specialty. You are not around people who spend their time texting, talking, or taking pictures on their cell phone because it is not allowed in the building AT ALL. You would need to go outside the building if you need to make a cell phone call. If you use a cell phone in the building, then you are immediately terminated and not eligible for future employment. There are landline phones within the building provided if you need to make a local call on your break.
Cons
Does not pay much. Repetitive. Is not 40 hours work per week. Is not year-round work, you only work for several days to several months at a time. Some parts of tests have ambiguous rubrics that are difficult to qualify on, but those are mostly far outside your specialty.