Cisco Developer interview questions

Standard phone screen followed by onsite interview. It took only about 2 weeks from recruiter call to onsite but the result took a really long time. I guess it is the bureaucracy. Looks like Cisco has a deep hierarchy and am not sure if all the layers are in sync during an interview process. It was more or less haphazard. To me, it looked like they werent prepared for the interview (delay in interview (25 mins!!) start and they didnt know who would come next, to top it all, they didnt know if there was even going to be someone else to interview me after them). Though I had 5 scheduled rounds, after 4, they said they were done and I did well. It confused me. Also, after a week, I heard back from the HM who gave me his word that I will receive an offer soon. But that never happened. Even after multiple follow ups, no response from cisco. This is simply unacceptable! Candidates spend more than half a day interviewing and the least they expect is proper means of communication and a RESULT! Surprised at this unethical way of handling candidates. I cant picture myself working here.