Pros
If you like to challenge yourself working on fascinating problems that matter, this is the place for you. GE is loaded with some of the best and brightest minds in the world. Here you can champion an idea and take it all the way to market if you wish, or become a world expert in the area of your choosing. Be prepared to work hard, this is an aggressive "type A" workplace, and you will reap the benefits if you can hang with the pack.
Cons
The culture can be a bit conceded and entitled (We are GE, look how great we are, people love us for our name). With all the great things, GE is a large company and weighs "risk" very seriously; this can make the company feel slow and bureaucratic, but if you understand the machine you are working in, the behavior makes sense.