I indicated "average" for difficulty but admittedly, I have very little to compare it to in this field. Prepared in advance by Googling any possible interview questions for my line of work, (investigator, SIU) as well as general interview questions which may seem easy but can creep up on you if you're not prepared. I tend to think that you prepare yourself adequately by anticipating questions in advance, it will be an easy to average interview. If you don't prepare, I imagine it could make you feel uncomfortable,