I joined a few years ago. The interview process took all day, included a job talk and meetings with about 15 potential colleagues and managers. It gave me a pretty good idea who I will be working with and on what, as well as of the personalities of the managers.

Called for 30 minute interview. The interview was good. Interesting questions. Interviewed with two people. Looked like they are interviewing several people and asking standardized questions. Hard to tell where one stands in process. At end of interview, they stated they were still interviewing candidates and someone would provide updates for all candidates in future.