I had one interview and the interviewer was incredibly rude and arrogant, and I declined to continue with the process immediately after. The process was supposed to take a very long time, and I wasn't able to wait for them to maybe get back to me, especially since the person interviewing me would have been my boss

The HR person who spoke with me was friendly and met with me briefly before the actual interview with the hiring manager. There was about 6 other people being interviewed also for the position that day (I happened to see the list briefly). The interviewer asked me technical questions based off my resume and hypothetical questions based on the job, and seemed a little nonchalant during the process. I didn't hear back until a couple weeks later, so I already kind of knew that I wasn't one of the top candidates for the position - which was all right since it wasn't the ideal type of job I was looking for but it was Apple. I think it's fairly well known that Apple has a competitive hiring process where they bring in a good number of people for a short interview before deciding to interview more extensively.