Pros
You will learn how to handle situations despite being given very little information or training. You might even be like me, and magically become psychic or clairvoyant after getting hired because I had a feeling I was going to be fired from the very beginning and sure enough, the department I was moved into was restructured and my position was eliminated after a year of working in it and training a new hire.
Cons
There is not enough space in this text box to describe the absolutely abhorrent, disorganized, turbulent, hands off, management team. There is also not enough room here to describe the lack of instruction, resources, and opportunity to grow within this company. If you are not a partner, Jewish, or within the management team (even that's a stretch) you are not safe or secure in your position even if they tell you you will not be at risk of losing your job if they hire someone new. Last piece, if they hire someone new within your department, keep your resume up to date, and send it out to as many companies as you can immediately. They are notorious for hiring new people, and then firing the person who is training them for their position, leaving the new hire in the same position the person who was fired was likely in when they were brought on.