Vantaggi
If you want to move up, there are opportunities to do so. If you're fresh out of college and thinking of management, there are programs within many business disciplines to get you there. They have a global footprint, so location will never be a problem. They are very serious about having a non-hostile work environment. They are very good to mention who's been promoted, retired, etc.
Svantaggi
They mostly pay "competitively", which means "lower than average, but close enough". There is no direct correlation between your annual reviews and your raises. Some people will only work with you if it does not interfere with their own work. Some business areas are so large nobody knows how they relate. It makes it very difficult to find help outside your area. Because there are a multitude of "personal websites", it's very difficult knowing where to go and how to start a process. You have to "know somebody" to get your job done. You train with your own time and money. Training budgets were reducing every year. During any "state of the business" meeting, the leaders don't seem very excited as a whole. New products are introduced sounding like it's an afterthought. There is so much stuff on the powerpoints you forget what the core message is. The leaders can't explain their messages in clear, succint tones. Everything is "GE-speak".