Good food but impatient waiters
There are really a lot of good food in Hong Kong, but almost all the waiters and waitresses are lack of patience. They assumed all customers know their dishes well and couldn't stand that you ask them questions. The price of local canteens is also not cheap.
Besides the protest issue, the service is the only thing that leaves me a bad impression of Hong Kong.
Insider Tip:Buy the unlimited MTR ticket as the single trip is just too expensive! they have 24Hrs, 3-days, airport+city, and other choices, choose one that suits your trip.
Almost all the waiters and waitresses are lack of patience, (except those in high-class restaurants), please decide what you want before calling them... So... try not to disturb them or let them affect your holiday mood.
The current protest really affected a lot on transport and safety.