As I was reading through this tread I got excited because first of all, I also live in a Chinese speaking country not too far away from HK, and also because it looks like there are a couple of people on this forum who speak Chinese. However, I don't get your name being a reference to Chinese. I speak Mandarin, however, so it might be a reference to Cantonese, which I know is spoken widely in HK.
I would also like to hear stories about consuming cannabis in China. Getting herb where I am is pretty difficult and I've had to be pretty, ahem, creative to get it. Although, I have now got a method that has allowed me to sample some top shelf product. By the way, using cannabis here sometimes scares the shit out of me because I know what the high penalties are for getting caught. I just try to be careful and not talk about it with anyone.
On to vaporizers. I own an UD and I've had it a couple of weeks. If you're looking to ship frrom the states, I know of a package forwarding service I could recommend. I believe it costed me about $40 US to have the package forwarded here. The UD is a great vape. It conserves herb well and it can be left on 24/7.