So let me get this straight...the idea is you pay 160HKD, and you get a fully functioning SIM card that gives you 30GB of data to be spent however and wherever you prefer (HK/China/Macau) during the timeline of a whole year?
EDIT: Nah, seems there are some caveats:
There's one that covers China, HK, Macau and even Taiwan, but offers only 5GB data + 5GB social media, then there's the huge one with 30GB + 20GB which only runs on LOCAL data. There are some variations of this (30GB local + 3GB international), but the international data isn't that big in any of these, I think.
I see how this can be interesting/useful to others, I just got the wrong idea.
EDIT2: And yeah, I also hate the idea of them using a separate connection to divert all your social data so they can use it in ways described exactly nowhere. It also happens in other countries (Philippines, maybe others), but I hate seeing it done in HK.