Spending Christmas at Disneyland HK was a good experience for kids. The weather is cool and most of the rides were in operations hence the kids had a great time. One should consider buying tickets online to avoid the queue and to get discounts too. We got out ticket at Klook for only 449HKD the tickets at that time is 539HKD. If you are staying on a hostel ask your host for discounted tickets most hostels offer this. The only downside of our visit is the long queue on each ride some took 40 minutes while some are quite fast. As to most theme parks food can be expensive. It's good that bringing food inside is not strictly prohibited in Disney HK. I suggest you bring your own water. Water inside the park is 28HKD which you typically buy 5HKD at 7 11.We super enjoyed the fireworks staged at 9pm. It was truly a magical experience : ) my kids were amazed with the display. 