Pros
Excellent work/life balance! Rank and file are probably the best, scientifically and technically, to be found in any organization and are eager to share knowledge. Mitre does provide some venues for knowledge management and knowledge sharing.
Cons
Management of CCG is probaly the worst of any company anywhere including government. There is absolutely no path or chance for advancement. The yearly review process is a total sham and virtually worthless where employees are not allowed to participate. You are judged by a group of managers that you never react with during the year, who have no (little) knowledge of what you have accomplished. If you do not have BIG BLUE (IBM) on your resume your career at CCG will stop with no further chance of advancement. MITRE, particularly CCG, is turning in to a job shop of senior talent, without the compenastion of a job shop, with no reward(s) for good work!