I was a student at the high bridge express that is a little different from the regular course. I was invited to the interview process of Bain due to another selection, I knew nothing about consulting and about case interviews, and I had only 50 days until the interview, in the first month I tried casebooks, buying courses (LOMS, crafting cases) and I still felt that I couldn't understand the basics of the process.
I talked to a Bainee that introduced me to High Bridge, and I was sold in the first class where I could finally understand some basic concepts that I was lacking, after that my development improved a lot and two months latter I received my offer.
Not only that, in the beginning of the process I was told by the company that if I performed exceptionally well in the interview I could receive an offer to a more senior position, and I could also achieve this secondary goal thanks to High Bridge.
I didn't felt as something that was mass produced during my preparation, I was always able to solve my doubts, all the time they were coming with new exercises.
Also the cases from High Bridge are really detailed, and explore a lot of concepts, the mentorship sessions were really fantastic but the community of students and ex-students are the highlight of the course, being able to train with people that can give you great feedback and push you to improve is amazing.