Pros
GE offers entry level training programs in a variety of fields that provide you with an unparalleled early-career experience, and has well-defined tracks through the company for at least several years. You'll learn a lot, do a lot, and probably move a lot (hopefully for you that's a pro ... if not, shift it to the con section in your checklist!).
Cons
There are about as many employees working for GE as there are people living in the country of Iceland - 300,000+. That's one heck of a bureaucratic machine to deal with, and GE often suffers for it. Trying to change the direction of even a very small business unit can feel like trying to steer a cruise ship with a rudder the size of a credit card: you better be very patient, and not expect to radically overhaul anything. Additionally, GE's favorite technique for making quarterly numbers is to freeze travel and freeze hiring, so departments are chronically understaffed and unable to meet face to face with key stakeholders who may not be colocated with you.