I had so many interviews (about 7/8) and still had to prepare a case presentation. The whole process took almost 2 months. I got to the final round of process and was not hired - I received no feedback AT ALL!
The interview process was quick and started with a phone screening. They varied the following interviews with different people and teams, making it diversified and not limited to the team the position was on.
Culture seemed to be like that of a typical tech startup. Hiring manager was focused on ability to automate tasks and wanted someone who would be extremely zealous about the company.