I applied online. A few days later they sent me an email wanting to set up an interview. Knew who I was interviewing with before I went in. We scheduled a time and I went in. Didn't have to wait long before they sat me in a conference room with two of the partners. Asked me about my experience, why I wanted to leave my current job, why I wanted to work there, etc. The usual questions that you get during an interview. Then they asked me if I had any questions, which I did. Interview lasted about an hour or so. Maybe less.
Got a call back and set up a second interview. Didn't know who I was meeting in the second interview. When I asked the office manager told me "partners and associates" that are available. The second interview consisted of meeting in pairs just about every attorney that was available. I think I met 9-11 people. They were all generally pleasant. The hard part wasn't answering questions but each group would ask you if you had questions, which I ran out of in the first interview. I think it lasted 2 and a half hours.