There were four rounds total, starting with an initial interview with the team director, the hiring manager, a panel presentation interview, and then one with the CEO. Before almost all of the interviews, there was also a sort of corporate personality test they asked me to do. Everyone I talked to was friendly and seemed to like their jobs, and up until the end communication was frequent and prompt with consistent updates. The panel presentation was a bit difficult because the prompt was a bit broad but I think made that way so you could tailor it to your skills. My only negative experience was at the very end - because I had received almost weekly updates through the process, it was very noticeable when a week and a half after my final interview when I had not heard anything. I ended up sending a follow up email and was told then that I did not receive the job, instead of a rejection email coming on its own. I am not sure if or when I would have received one if I had not followed up, and did not receive any feedback when I asked about it.