Totally agreed with you that the atmosphere in HK is
awesome..... 
Actually October is the BEST time to visit HK... (short Autumn
period).. Temp falling to 20-24c.
Not that cool... not that warm.... (Air-con Temp). shiok

I went on Jan, Apr, June, Aug. But Jan is very cold... and
when the wind is blowing, it can drops below 10c.
but go in OCt, only selling winter clothing
leh. I miss the dessert there.
I regret not going to eat
pigeon.
Sometimes it is kind of difficult to explain the atmosphere
there but I like it. best part is there are
more of sea and mountain to see as compare to sg.
Hope you continue to enjoy your trip.