BlackRock Analyst - Portfolio Analytics Group interview questions

Had interview yesterday, haven't yet been contacted regarding Superday. The interview was relatively easy, with few technical questions. I was only tested on technical knowledge when talking about my experiences in a summer internship. The interviewer was fair, unassuming, and even-keeled. Knowledge of the firm is a must. BlackRock prides itself on excellence, and it is necessary to know the firm inside-out when interviewing with them. Advice would be to reach out to current employees to get perspective on culture to have an idea before walking into the interview.