Long and confusing onsite interview process!

1. I was phone screened first by a recruiter from San Francisco. He was on the ball and set up interviews on a tight timeline, as I was leaving for holidays.
2. This was followed by a coding challenge with a deadline of roughly a week. I managed to complete it in 4 days.
3. Then came a phone screening by a technical hiring manager.
4. I was invited for an onsite interview at the Melbourne office (on the day I was flying out for holidays). In hindsight, I should have chosen a day after my holidays.

It was all smooth until the onsite interview. The process at the Melbourne office was laborious, panel after panel! I was a little disappointed that none of the panel members had seen my code submission, even though I was told I would be quizzed based on my submission and a few technical questions.

The "technical" questions were trivial and sounded like a junior-level sysadmin interview. As I walked out the door, I was sure I had the job, but it was followed by the usual rejection email: "...thank you for meeting us, we enjoyed speaking to you..."

I would have expected feedback on my performance, especially when one has... The engineering manager, though, at the end mentioned that he was impressed with my submission, although I only had about 5 minutes of meeting with him.

What is the best and worst outage you were part of?