I actually cancelled this yesterday... It works - not quite as well as they claim, but it does work. You need to register once with your device (an iphone, right?) then whenever you connect to their network you will get a landing page without having to actively login. You don't, unfortunately, get Internet access until you've loaded the landing page, which means you can't grab email etc. until you've loaded up your browser.
In terms of their network, it's pretty good. There are lots and lots of access points, it covers things like every mcdonalds, starbucks, 7-11, etc. as well as the airport express and lots of public phone boxes.
Why did I cancel it? A few reasons:
- It actively refuses access from Android devices, and although I can hack around that, it's annoying
- I don't actually need wifi access that often in a single location, as opposed to while walking/tramming/MTRing.
- The Smartone-Vodafone 3G is actually well within reach of the throughput of the PCCW wifi and works without having to load a landing page whenever I want fast data...
Frankly, if you think you're going to use it $1 (or less) per day is probably well worth it!