Perella Weinberg Partners Assessment Center (AC)

Seems you have muddled a few details up from your friend. Did both processes last year. passed pjt, failed evercore.

pjt: round 1 -> technical (medium difficulty), round 2 -> AC:2 behavourials(md/vp - set structure so pretty easy) +1 technical(hard with paper lbo)

evercore: round 1 -> technical pre recorded interview(easy difficulty), round 2 -> Wiser technical interview (Medium difficulty), round 3-> AC:maths test (medium-hard difficulty with some finance related maths), pre-made individual presentation(medium difficulty - can be harder for some if they did dcf/ddm/lbo etc instead of comps), in person group presentation(hard difficulty - this is where I believed I got dinged because the follow up questions scaled and others were stronger at tackling them), 2 behavioural interviews(1 senior md, 1 vp - smd interview felt relativelyunstructured and there were a few curveballs asked so I would say medium difficulty).

Paper LBO was definitely the hardest thing I had to do for a summer but overall the process was easier than evercore. So yes, evercore was a little bit harder but heard pjt can be brutal if you had prior rx experience. PWP will likely be just below this level of difficulty, same with other eb's except laz/roths, both of which have a considerable amount of summer analysts walking in with 0 technicals asked prior(Speaking from experience!!!). Overall, prepare for an evercore level process (I think pwp also does a post ac maths test which is the very basic Dartmouth one) and do a little bit of paper lbo practice just incase then you are set. 4+ months is moreee than enough time to prep this.