What a wonderful report. Thanks for taking the time to post it, I really enjoyed the read.
I'm glad you enjoyed my home-town. May I suggest that next time you visit Sydney (or for any future visitors reading this), that you take the time to get out of the CBD for at least a day. As much as I love Sydney, spending 4 days straight in the CBD would make me go cross-eyed. Perhaps take the ferry across to Manly, and/or do one of the many awesome harbour walks (my favourite is the slightly less touristy Balmoral Beach to Taronga Zoo walk). Or head over to Bondi and do the Bondi to Coogee walk.