Applied online for BA role in Sydney (based in New Zealand myself). After 12 days received an email informing the Australian office would like to meet me. Had 7 days to prepare and the interview was conducted locally in a hotel across from a client's headquarters. Because it was done away from McKinsey's office I got to skip the PST but ended up having to do three one on one interviews instead of two. Interview format mostly consists fit and case. The fit stuff is pretty straightforward and should be no problem for anyone that got passed resume screening. But the case, a little open ended and mental maths can be challenging for someone who hasn't been in junior high in a long time. So advice for anyone going into the interview: practice heaps of mental math equations. And when coming up answers, be clear about the approach. The company cares more about the approach then result (but the result is pretty important too). Overall, pretty positive experience and they gave great feedback which prepared me well for my interviews with BCG and Bain. Learnt a lot about the company too. Too bad wasn't given more time to prepare.