Pros
Some genuine fellow feeling for employees. There are many fringe benefits that they don't need to offer to be competitive but they do, and they encourage us to use them. There is a clear awareness that it is better to keep employees rather than hire new and so there is effort to keep employees on, even when there are not doing billable work, and to provide internal mobility, and many opportunities for continuing education. There's lots of opportunity for remote work and to shape your career and work experience.
Cons
The salaries are not as high as some as their direct competitors - that's fine if you take advantage of all the other benefits but if you want salary first and foremost than it will be lower. It's also a very slow increase and not easy to get raises. They are one of the big consulting companies and so you are subject to the politics of that, lots of defense contracting, and shrinking civil sector, and unsavory capitulating to the administration: e.g. removing DEI language, contributing to the White House Ballroom