Pros
As an Accenture employee, I work for a big customer of Accenture and on a long term contract. Not much travel required, which is good for me. (I have two kids under 6.) You get some training opportunities and learn different technologies, especially when the project get more complicated. Workload is not that terrible, did not work many over night in my past year. People are very nice and pretty tolerate each other with different culture. Accenture is a good name to put into resume. If you want some security, stay here. If you are young and competent, move ahead.
Cons
We have many managers have no idea about the technologies. Some horrible architecture and design are passed into implementation without enough technical review, usually because the managers lack technical skills. Out sourcing makes things even worse. Poor and inexperienced developers get hired at India and cause more work here, e.g., cleaning the code and more debug. What managers care is budget and deadline, not enough work has been done to coordinate the teams. All these add up. You can imagine the mess. It won't take too long to make your morale low. I think that's why I see many people leaving.