Pros
They are very helpful and have always responded to my emails within a day, and very nice when they do. You can set your own hours (though they suggest @10/week and you'll get email reminders if you're under 5/week for too long) Monthly webinars with live question/answer training/review (they usually have an Irish accent, if you enjoy that kind of thing) The work that I do (Rating) is pretty fun honestly. I get to see a lot of websites and articles that I normally wouldn't, and they ask my opinion about them (which I love to give) They pay you for training and reviewing your work. They offer benefits to Part Time workers too.
Cons
The entry exam is difficult, pass/fail, and they will not tell you what you got wrong. They usually won't let you retake the exam, though sometimes they will if they need more people. There are high accuracy requirements (but they are very willing to help if your numbers are low) Some tasks are NSFW with possible pornography, upsetting, or violent images and videos (they do let you opt out of those kinds of things if you are not wanting to risk seeing those kinds of things, or your kids)