Pros
I have worked with Accenture in two countries - the US and India. I felt that there is deep respect for one another and one can trust & rely upon another to deliver on commitments. There was an extremely high degree of ownership and accountability at an individual level - a deep sense of personal commitment. I salute the commitment to "Performance Achievement" at a scale that is daunting - it takes tremendous courage on the part of leadership to initiate this and support it, knowing fully well that it takes multiple years to achieve the intended outcome.
Cons
Accenture's greatest strength can also be its weakness. Its size and speed can cause scary moments - particularly when multiple countries & cultures are involved. The change can be daunting and structures are needed to navigate the rough waters.