Bureaucracy, bureaucracy, bureaucracy... Did I say bureaucracy? Procedures are painfully cumbersome. To get anything approved (project, transaction, etc.) you need: long documents (that frankly very few people read), the sign off of "experts" and "specialists" and tons of Committees.
Personnel recruitment and human talent management is a joke! While there are certainly excellent professionals, there is no shortage of incompetent employees that keep their jobs thanks to "other skills" and/or relationships.
Depending on the organizational unit (some are very good, some are a disaster), it might not be a good place for entry-level professionals in that they are not going to learn skills that can be useful in the real world.