Did the full Advisory loop a few months back for a Senior Associate role. Came from MBB so I thought I had the behavioral piece handled. Mostly true, but PwC has a specific culture filter that MBB doesn't emphasize the same way: they really care that you're a team player in the collegial-firm sense, not just a high performer. A few things I noticed.
Round 1 was a 30-minute recruiter call, mostly background and availability. She asked once about relocation preferences and then once, unprompted, about long-term career goals. Keep that answer honest but partner-track framed.
Round 2 was a senior manager, 45 minutes. Pure STAR behavioral. She asked about a time I dealt with a client who pushed back on my recommendation. I had a solid example ready. She kept asking follow-up questions to stress-test whether I could stay composed when the client didn't agree. That was the whole signal.
Round 3 was a partner. 30 minutes. Felt more like a conversation than an interview, which is by design. He wanted to talk about how I think about the market, not specific project stories. It's a vibe check for fit at the senior level.
One thing that surprised me: no case study for this particular role. I'd been preparing for one and didn't need it. That said, I've heard from people in Deals that they absolutely get a written case component. Ask your recruiter upfront.
Total timeline was about 5 weeks from application to verbal offer.