Pros
I built some good contacts who are all now working in the finance industry other than at Citco. If you are young and out of school, this is a good start. Spend 12 - 18 months building skill set, but don't stay longer. Kitchen is full of free beverages, beer is offered after 5 because most staff work long hours.
Cons
Very little opportunity to grow. Organizational structure very restrictive. Good people are guaranteed to leave, and this is a place where mediocrity thrives. Can't learn much from senior management, as they lack many essential skills themselves. Work environment resembles that of a frat house. Employees often inebriated after 5, and continue to work with management turning their heads. Do not support professional development, as you are likely to leave so investment in staff is a waste.