I had a phone interview and then an in-person interview. The in-person interview was conducted at one person's desk, and then a superior came to that desk and asked questions while the first interviewer worked on his computer. After the interview process where I performed fine, I never heard back. I emailed the original phone interviewer, and he never wrote me back. Obviously, it's incredibly unprofessional to have someone essentially go through 3 interviews with your company, and then never get back to the interviewee nor respond to an email regarding some response.