Pros
It's a great place for those people to start out at. They actually hire more people at the beginning of their careers. If you are joining ATS make sure that you have experience so you won't get low balled. In my years at Accenture, the lowest percent increase I've received is 9% plus bonus - which is pretty good (that was without a promotion) and it's gone up to 21% plus bonus (with promotion).
Cons
The promotion process is difficult. Doing your objectives and how you are evaluated doesn't make sense. I was a career counselor, the sytem is completely flawed. The people that write evaluations don't know how to write them; They don't understand what each rating means. They want you to participate in the Accenture extracurricular activites, but it only counts so much - it almost isn't worth it - I would say.