Low salary.
This is all location-specific as Lebanon, VA is part of their low-cost facilities. If the location you are looking at is in the middle of nowhere, then it is low-cost. Non-low-cost facilities might be different. The goal is to hire in low cost of living areas, which works partly. I've come to believe that a big part of it is get people to build their live in an area were there are not many employers (at least IT type employers), making it very difficult to change jobs without having to relocate. Because of the difficulty involved with moving, you are more likely to swallow the pill that cost of living actually makes up the difference in salary.
Prepare to make at least 20k less than what you could make in nearby cities. They say cost of living is so cheap in SWVA that it makes up the difference. But if you actually compare the cost of living (there are various websites that do this), you'll find that the truth is that they are just cheap employers. If you're needing to build a resume, that can easily be overlooked, but if you are experienced or highly desirable already, CGI isn't going to be a competitor. They would rather hire bulk less-skilled employees rather than a few skilled workers (again, this is mostly location-specific). Also, don't think that after you've proven yourself they will acknowledge how little you make and correct it, you'll get raises that match or are a little higher than average raises, they will not offset the gap. I've heard the best way to move up in the company is to leave and then come back.
Also, lots of management. Which is good if you want to move into management, but be prepared to answer to at least 2 different people on a day-to-day basis, and more on a less often basis. Eerily similar to Office Space and TPS reports. Lots of management can be good too, because if something goes wrong, it will land on a managers head and not yours.