Inital phone call with hiring manager turned into ad-hoc interview. Was asked to join a conference call the next day for a formal phone interview with all management present. Was invited to come in person for an interview one week later. The process went like this - individual interviews with all of the management, lasted half the day. Then, taken to lunch by the hiring manager, talked about non-work stuff. After lunch, group interview with all management, and presented some prior research.

Good interview process, nice and friendly without too much pressure. Asked standard interview questions. No out of the box questions or too difficult questions. Just need to know your resume.