I used an Octopus Card during my travels in Hong Kong for the MTR, buses, and general purchases. I also topped it up with money. It was very convenient to use; I didn't need to carry a lot of cash. Tap-to-pay is quick, and it works in many places, making getting around Hong Kong much easier.
What impressed me most was that one card could be used almost every day, whether for MTR travel, buses, or purchasing items at convenience stores and various shops. Tapping the card is quick, saving time queuing to buy tickets every time, especially when traveling to many places in one day. The Octopus Card saved a lot of time.
Topping up the card is also easy and straightforward to use, even for tourists. It eliminates the worry of preparing cash or coins for travel. It also helps me manage my expenses better during the trip because I can top it up in advance and spend only as needed.
Overall, I was very impressed with the convenience, speed, and comprehensiveness of the Octopus Card. It's highly recommended for anyone traveling to Hong Kong, as it makes travel smoother, easier to use, and significantly improves the overall trip experience.