Had 4 separate calls/interviews over a month and a half. The last round I made it to was 5-6 hours and required hours of preparing for, as I had to put together a 45 minute slideshow and present it remotely. For the most part, they were nice people. Considering the mental toll the process took only to not get to the next stage, this was definitely the worst interview process I’ve experienced. They are VERY picky.