Reputation-wise they are not different than the rest of the firm. In fact, it is just one of the practices of the firm, and it is treated as such internally.It's not like the Big4s, where CF and Audit services, for example, are perceived differently by the market.I'm sure you will be able to move to a PE firm easily, because the McKinsey brand is very strong in the market. In fact, I believe they will value the mix of strategy and finance that McKinsey CF guys are able to bring in.