I was on the inaugural to SYD
last year - 25 October 2007.
Didn't enjoy the flight itself that much, I wasn't really into the big circus that it was up there that day. But I love the aircraft, quiet and smooth. Usually I avoid sitting near the back of aircraft because it tends to be a bit more uncomfortable, but I was at the back for that flight and it was still an excellent flying experience. On the whole I thoroughly enjoyed the A380 experience and I'm looking forward to taking it again, though when that will be I've no idea.