Pros
Managers let you handle a variety of work early on, which will quickly expose you to the ins and outs of events- great for those who want to learn quickly at a short amount of time. Learn to develop thick skin- managers can be blunt with comments but quickly forgive when you make mistakes. Co-workers are nice to work with- will help you out.
Cons
Toxic work culture- long working hours with managers who don't respect boundaries (expects you to answer calls at all times, etc.), tight deadlines that you're expected to make, superficial culture (only accepts those that are good-looking, fashionable, etc.). Lack of mentorship especially for creatives- you're expected to know everything from the start without any formal training materials or seniors that you can count on for advice.