Pros: awesome health benefits
Cons: everything that isn't health benefits.
As long as you stay out of the sub-basement and you will probably be okay. You will be surrounded by adults who act like children, and management who are pathological liars. They will ask for your bachelor's degree, but still pay you high school, entry level wages.
As far as the health benefits, excellent! The only real reason I continued to work here as long as I did. The employee moral is horrible, and don't bother suggesting anything to the supervisors or the higher ups because they don't care. Short of chaining you to the desk, you will be a slave in every sense of the word. You will be required to work in that position for six months before you can move around, but beware because management will make sure to bad-mouth to ensure you can't leave and their quotas stay in place.
Payroll is ridiculous and you won't get a discount in the cafeteria at the hospital. If you work midnights, please bring a lunch, as you won't be able to purchase anything at the hospital. The cafeteria closes at 7:30pm, the cafe closes at 6:00pm to reopen at 12:00am. But understand the payroll goes down for an hour upon reopening, and again at 2:00pm. Also, they have have food as the staff are too lazy to cut, bake, walk, talk, etc (only the midnight staff).
If you get a job in the sub-basement please make sure you never stop looking elsewhere for a position.