香港 3G/4G 電話卡，極速上網，信號滿格
香港 4G 自遊行電話卡：
Good connection everywhere in Hong Kong! A must get when you're overseas! Accessible, convenient. However data speed can be improved as connection may be slower than usual at some rural parts of the island. Overall everything is good!
Fuss free, easy to use service. Just book it online 2 days before I fly, and pick up from Hong Kong airport when I touch down. The counter is after immigration though. I kept asking around afraid that I'll miss it. The staff at counter will pass you the card and you'll have to insert it on your own. She will then tell you how to activate it.
Very easy pick up, the guy at the counter was helpful and installed the 4G card for me. Honestly I can't really tell the difference in internet speed between the 3G (which I had for 8 days before) and 4G card, but that could also be my phone. Haven't tried the top up though or calling so wouldn't know about that.