The initial email to being the interview process is a bit daunting. They have a very "robust" interview process - which is respectable. But high expectations from a candidate should be reciprocated from the interviewers. A lot of quite long pauses and it seemed that they were in a conference room, could barely understand/hear. Three interviews later (with three more remaining in the process) I never heard back from them. A bit disappointing, candidates appreciate hearing back whether it's positive or negative.