Pros
The mission of Children's is hard to beat and is what keeps many of the dedicated employees there, in spite of the short-comings of management. Making a difference in a child's life is worth the sacrifices you make in working here. Many of the people (employees not management) that work here genuinely care about the patients and provide excellent care.
Cons
It is an extremely political environment and promotions are granted because of politics, not based on performance, expertise, or ability. Some people in leadership positions (Director and above) are only marginally competent. Management is not consistent in how they treat employees or problems, and speaking up can cost you. There are pockets of good management, and if you are fortunate enough to work in those areas, you will really enjoy your work and benefit from the leadership and mentoring you will receive. However, the environment created and tolerated by the senior leadership usually drives those good managers away eventually, which is disheartening to those hoping for positive change. Unless you are a nurse, expect your pay to be below market. Perhaps they are counting on the mission to attract and keep you there. If you ask for a raise, you may be lumped into a category of someone who is "driven by money" and that is seen as negative and will hamper any advancement you were hoping for. Processes are bureacratic and cumbersome. You have to jump through too many hoops to get things done. If you are not in management, communication is poor regarding changes.