How Important Is the First Impression in an Interview?
Some people land a lot of interviews, but rarely get the job.
It's possible that if that happens to you, it's just bad luck. Perhaps each time you interview, a slightly more polished, more qualified candidate comes in before or after you.
What's more likely if you keep interviewing, but fail to get the job is that you're doing something wrong. That could mean a lack of preparation or not being ready to answer standard tricky questions.
Source: Fool.com