Pros
Not many. If you want a job where you just chill all day then it's perfect. Some roles permit working from home which is nice. Kinda impossible to get fired unless you really do something awful.
Cons
Basically no raises. Even the base raise is less than inflation so you almost lose money each year. Always under staffed and of course under paid. Only good thing they had was tuition reimbursement but that's also gone. They try to prevent you from moving up or switching jobs. No real career path. Managers don't care. So much disconnect. Typical big bank bs. They nickel and dime everything. They literally took away the trash cans under our desk to save money. Since they were company owned trash cans, they had to pay someone to empty them so that was their grand plan to save money. Healthcare used to be good but of course not anymore. HR process is terrible. Very unresponsive. Some roles make you work holidays and try to pull a fast one by having you have a different day off instead of paying you the extra hours for coming in a day you're supposed to have off. If you get hired from external, they pay those people more for the same role compared to if you were to make an internal move. Quite mind boggling.