I was initially contacted by email to have a phone interview. It was very informal since they asked me to tell them about myself and so I did. I then got an immediate email stating that they would like me to come in for a face to face interview. HR made a mistake in giving the PI the wrong time of the interview but when I came they were still there and they understood that it was HRs fault. The interviewers were very friendly. I first met with the main 2 and then the manager of the lab. I was then given a tour of the place and introduced to the members of the lab.