Good way to approach an interview, try to get as much info as you can and remember that if you still have questions, ask them at the interview, after all it is your career and not just a salaried paid job, so you should know about them more than they know about you. Unlike other industries where the business revolves around a product,in consultancy, consultants are what makes the business breathe, so you are the product the company cares about and eventually you will end up being the products you need to market to your client so you have to be convinced in what the firm does
