Lonely Planet’s guide to Hong Kong (condensed) makes the following comments about the “lowlights” of Hong Kong (after discussing the highlights).
Hong Kong is not the easiest place to bumble around. For a start, no one here mooches: they’re all hurrying with intent in their eyes. And it’s an elbows-out, unapologetic kind of hustle. The air is filthy: there’s nothing very charming about hacking up black gunk at the end of a day out and about. And if you want us to get even more petty and picky: the contemporary art galleries at the Hong Kong Museum of Art are a poorly curated joke; we’re sick of air-conditioners dripping on our heads as we walk down the street; and once, just once, it would be nice to get a seat on the MTR.
I’ve experienced the “hurrying with intent”, the “hustle”, the drip of the air-conditioners, and in my time here so far, I am yet to be able to find a seat on the MTR, despite travelling in off-peak times. But all this just adds to the charm of the place :D