Pros: financial bonuses on some sites.
Cons: client driven work; work-life balance depends on site.
Robbins Gioia cares about their people as much as possible. Meaning, they are in the business of making money so when they move forward and have to make the tough decisions employees usually lose their jobs. I don't think there is another consulting firm, however, that will work harder to maintain their workforce, which brings me back to my above statement--they care about people.