Pros
The answer used to the 'the talented people you work with' but I'm not even sure that is true these days.
Cons
If you are a prospective employee or client then, please, do your homework before making any kind of commitment. Korn Ferry looks great from the outside but do they practice what they preach? This is a company that charges huge fees to show clients 'the best way to compensate, develop and motivate their people'. But do they take their own medicine? How motivating is it to work at KF? Quietly ask a current employee for an honest assessment and then wait for the real story. Want to work with them in D&I? Check out their gender pay reporting. Leadership assessment? Ask them when the last time was they were asked to assess a colleague. Compensation? Ask them whether they have a fair and transparent pay structure. Engagement? Do they measure engagement internally? Leadership? Ask an employee to tell you about some of the behaviours exhibited by the senior leaders in the US and how that plays out in terms of culture, wellbeing etc. Want to work in sales (you will be)? Ask your conscience how you will feel about charging clients the maximum you can get away with but with substandard delivery support meaning that you will never meet your clients' expectations. All of the knowledge and expertise has been stripped out in recent years. KF is really just a huge sales operation now (the marketing brochures are very glossy). Current clients and employees get a raw deal. All that matters here is what Wall Street thinks - shareholder return is king - and this relentless focus has led to some deeply unethical business practices. Employees are leaving in droves.