It was interesting. They didn't ask traditional interview questions or even give me time to do an elevator pitch. The first few questions were more scenario-based. They were much more interested in understanding my thought process and how I structure problems than hearing rehearsed answers to standard interview questions.

Lengthy interview process - 5 rounds in-person including a seemingly irrelevant personality assessment, the opaque results of which candidates were asked to defend. Company could not reasonably defend working for unethical clients (BlackRock, CocaCola, etc).