Pros
Most of the people who work in the company are genuinely nice people interested in the success of the organization. They are pretty good about letting people take time off. Senior Management is proactive in communications to employees. Knowledge sharing is emphasized and is properly invested in.
Cons
Your experience will depend greatly on who your immediate manager or supervisor is. If you get a good one, career growth and learning will be good. But if not, be ready to be passed up for promotions for many years. Hard work won't be recognized unless you manage up to the right people. Because the company culture is that of an old school data company and not a management consulting firm, benefits and perks are thin compared to the consulting companies they like to compare themselves to like McKinsey and Bain.