Vantaggi
As a resume enhancer, it helps to have the Korn/Ferry name attached to your career. Otherwise, there isn't much else.
Svantaggi
Lack of overall management skill. Management sometimes has little or no experience in any form of retained recruiting. Real strategic insight and visionary thinking was pushed out the door for sub par management candidates. A healthy portion are recruited by senior executives who run into people in random places (ex: waiting for a plane in the airport). Decisions such as this did little to increase company moral. Nor did decision to eliminate all bonus payouts, regardless of employment contract agreements with the company. Of course, CEO failed to mention he would continue to take his $500k annual bonus (thank you SEC filings for this). Many Project Managers have little experience in managing projects or clients, which leads to constant issues. Furthermore when projects hit a bump in the road, they offer no strategic insight to move forward. They simple demand you complete the agreed upon contract with no offer of a solution. Describing the head of RPO is not worth wasting my energy on.