The entire interview process was comprised of 4-5 rounds and flowed very seamlessly. I think it emphasized the importance Jane puts on the people they bring aboard. It does seem very sincere, they are looking for the right person/addition to the company's culture first and the right person for the role second.
There is a 45 min mock presentation/interview, to ensure you understand the data. After that, you essentially meet with various team leads, get to know them on a more personal level and vice versa, and also get a thorough understanding of the entire organization.