Pros
Accenture is a prestigious place to work, and adds much to your CV, especially if you are just starting out with your career. You are given a lot of autonomy as a senior manager, no one looks over your shoulders. They also have a great team of IT support for a consultant, you are never left to struggle with your IT needs.
Cons
It is a competitive dog-eat-dog world. I started brand new as a senior manager, and received zero guidance and support, from peers or partners. Accenture's org structure is such that you do not actually have a manager. You have a mentor, who you do not report to, but is supposed to reach out to you and help you. Mine didn't, he was missing in action the whole time. I never heard from him except maybe once in 6 months. You cannot rely on fellow senior managers, as they are competing to become partner before you do. It is not a nice environment to work in, as a new hire.