Disclaimer: I don't know anyone who has used RK and I don't have any interest with any of the other interview prep services out there.

That said RK had a pretty notorious reputation for sniffing out guys who used prep and ending their swa careers before they even began when she did interviews. The fact that she has turned around and opened a prep service that charges nearly double what other ask just doesn't sit right with me, especially when there are other firms that do the exact same thing.

This HR stuff isn't rocket science. Prep is good, canned prep is bad. I'm sure RK Knows her stuff but I personally wouldnt give her my business over some of the other prep services that charge significantly less and are run by pilots.