One of the worst interviews I have ever been on! The hiring manager clearly did not have HR skills and basically interrogated me and the ordeal took about 15 minutes. I shut down and was no longer interested as a result of that interaction. I was pretty excited about the role going into it but if I had received an offer I would not have accepted working directly with this person because I learned all I need to know about his management style.
Remember YOU are interviewing them as well.