I had an initial interview, followed by a take-home assessment, and then another interview to go over my assessment/ answer general questions about my work history. One of the two interviewers during my second interview had to leave after 15 minutes for another meeting and the other had me literally explain things from my assessment, not to test me, but because he didn't understand the networking concepts.
All of that was fine, but like another reviewer said, after the second interview I received a generic response (not from any of the people that I had talked to) telling me that they were not moving forward with my application and "It is our policy not to give specific feedback to candidates." I followed up saying that I would appreciate a little feedback given the amount of time I spent interviewing with them and completing the assessment. I did get a response, but it was more generic than the first.
I find their behavior very disrespectful and insulting. I also think it reflects the general atmosphere of the company, or at least what I could gather after going through the process. Don't waste your time with them.