Five interviews in total. I did a first-round phone interview with a Consultant at the firm, followed by three in-person interviews at the office. A few days later, I was asked to do another phone interview with a Senior Consultant.
The first four interviewers were extremely pleasant, personable, and made me feel comfortable during the interview process. You could tell that they were invested in their staff and prospective hires. I particularly enjoyed the support they provided during the case interview, which made the process seem like a back-and-forth discussion instead of a barrage of questions. In moments I felt stuck, the interviewers were quick to help me back on track and reach a sensible solution. This type of interaction is what I would have expected the environment at the firm to be like. Based off of these experiences, I believe I would have enjoyed working at Trinity.
However, the last phone interviewer was stoic, non-collaborative, and generally disinterested in what I had to say. In addition, he provided no guidance during the case study portion of the interview and essentially led me to blindly guess a final answer without any feedback or solution. I've had interviews not go my way before, but I was especially taken aback by this interviewer because the experience was vastly different from previous interviews with the same firm. I don't know if they were pressure testing me, but regardless, this interview experience negated a lot of what I thought about the firm previously. I'm unsure if the fit would have been right for me as I wouldn't be able to work with someone like this last interviewer.
Having said that, please note that this is a singular experience. I don't want to knock on the firm as they do very interesting work and most of the people I talked to were great. Good luck to future interviewees!