It is always good to go through a consultancy since the initial rounds are conducted in the consultancy and if you get through you will have to go the company directly.

Contacted by phone saying they would like an interview. Day of interview: Spoke to day-to-day leader in the department and then head of department immediately after (possibly after getting the thumbs-up from first interviewer). After both interviews, initial interviewer returned and told me they would contact me within a few days with a decision. Contacted via phone two days later with an offer.