Pros
The biggest pro is the prestige - once you have their name on your resume, that'll open a lot of door especially on IB side. The people whom your work with have a decent caliber - I wouldn't say the brightest but above average for sure (this is only true for interns, associate, and consultants). If you're lucky you'll make long lasting connections with someone in the industry.
Cons
Basically, this place is run by boomer/millennial MDPs who depend on Interns & Associate who can make them feel younger, read between the lines, and can work 70-90 hours per week. If you're one of those type-A highly communicative gen Z then you might be able to shirk away some responsibilities and survive by working ~ 60 hour per week. Travel gets worse. The MDPs will take you out for dinners and parties which will feel amazing at first because you'll get validation for a industry veteran. Sooner or later you'll realize later the MDPs aren't really smart but they just have good connections in the industry. For some reason, they don't want to hangout with their family and want to drink wine or whatever with younger folks. Oh keep an eye on predator - there are only a few and easy to figure out which ones.