Pros
Pro's are mostly gone. Benefits and vacation used to be top notch, especially for younger folks. Now on Dow's system, without the pay raises.
Cons
Inability to develop younger talent. Little to no effective training. Younger engineers are expected to sink or swim and are not really given mentor-ship or leadership. You will have to mope around the plant trying to scrounge up your own projects before finally getting assigned a process. You'll mostly fail, because plant engineers are to overworked to try to help you out. Once you get that process, you'll drown in nonsense for months until you finally barely figure it out due to a lack of documentation and experience. opportunities for advancement did not really exist before the merger, after is hard to say. 9/80's now gone as well.