If you have some time and connection, suggest you talk to a few Bainies and/or Bain alumni, to ask them why they chose Bain, what they like most about Bain. I guess culture would be the top reason, while there might also be something else.
During your interview you can tell the interviewer that you had these conversations and thus you think Bain is the right place for you. It shows that you are really serious, you did your homework and your answer well thought-through and not just cliche.
Those conversations (esp with Alumni because they have no reason to sugarcoat) actually would be very helpful for you to decide whether you would like the company or not.