Pros
Work with great people, lots of variety and opportunity for advancement. Great matrix organization with ability to interact with top level management on regular basis. Benefits are good and management awards are a plus. Review process is lengthy but can be great if you have a great manager that is a mentor as well. Opportunties for community outreach are also outstanding.
Cons
Work / life balance can be very unbalanced. The general culture within GE is to work longer hours. This can be hard for some. When you have a less than desireable manager, reviews can be difficult because you won't always get the mentoring you might need to achieve stretch goals. With that said, there are numerous ways to find mentoring elsewhere in the company.