While I'm currently in the hiring process right now, it did not take long at all. I applied early in the morning one night (roughly 2am), and within 10 hours they called to schedule a phone interview the NEXT day. After the phone interview, they called back 30 minutes after and scheduled a f2f a week later. After the f2f interview which was 4 days ago, I was fingerprinted and asked to take a drug test (I assume this is good and I got the job because they were telling other people they would hear back from them in a few weeks where as for me they took me to the back and got me printed etc). The interviews were very simple. As everyone pointed out, just be yourself. They're basic questions about your prior work history.