Had my final round today. 2 partners and associate partners.
First interview: PEI went superbly well. Structure was perfect - Interviewer told that, then exhibit was good but math took more time and it was already past the time. Interview started late. Math was super tough and it took 2 mins for me to get back on track. Since the time was almost over interviewer just asked me to tell the approach. I did and he said thats the right approach and he gave me a number for one step in the interest of time. I got the final answer and he said its right. Do such kind of instances hurt the chances?
Second interview: PEI didnt go as an aswer but interviewer asked me a series of questions and I answered them, Is it normal? Case was super tough but managed to get the structure, exhibit and math correct.
Third interview went amazingly well. I performed well on every section: Structure, exhibit, math and brain storming.