Pros

It is incredibly stable and nothing will ever happen. Its great if you want to make sure you have job and income stability.

Cons

Just like the pro, nothing ever happens. You will not advance despite your skills and performance. They are a merger company and gain talent through acquisitions. Unless you are upper management avoid at all costs.

Advice to Senior Management

I would strongly suggest making the people who work for you feel appreciated. I came via acquisition and watched the morale and talent plummet from the previous company.