Easy and friendly. I was asked a bunch of questions while I was encouraged to ask questions as well. I arrived 15 minutes earlier and the manager I interviewed with was delightful. he also looked at and asked questions about my supporting documents such as degrees, transcripts, reference letters, and places I had worked, skills, etc. He was interested in the details of everything. He was pleased that I had exact dates for dates I had worked at other places, also for being on time for interview. I was a bit stressed during the first 3 minutes but he put me at ease and the rest of the interview process was very relaxed. The interview lasted about 1.5 hours. I was also asking questions and he provided detailed answers. It was like wanting to know deeply about each other and seeing if we are a fit for each other (me for company and company for me). I had a feeling like I have found a friend after the interview.