I recently interviewed with them for their management consulting practice at one of their Canadian offices.
First round was the usual case interview, fit questions + a candidate-led case. Although the cases were easier compared to MBB.
Final round was a written case where they gave me a case study and I had to use excel and pivot tables to analyze some data, and then synthesize it on PowerPoint slides. There was a presentation and a Q&A to panel at the end.