Few Suggestions

This is for new incoming students.
From my personal experiences, these are a few suggestions that I can give you.

Class Schedule

Unlike UH Manoa, classes are only either one or twice a week and two to three hours long! That can be an advantage or disadvantage to you. An advantage would be if you planned out your schedule before hand, you can easily get 3-4 days weekend, enough for a short trip to somewhere! Disadvantage would be cramming too many classes in short amount of time.

Examination schedule spans out on a period of two weeks, give you plenty of time to study!

Visa

Speaking of traveling...
If you are planning to go to China (Mainland China), keep in mind that you cannot use your Hong Kong visa to visit China, they are almost separate country!
For American, Chinese visa will cost you about $130-$140 for any types of visa. Here comes the suggestion!
Apply for your Chinese visa before hand, before you leave Hawaii! It will save you so much time and money!
If you apply in the US, you can get multiple entries visa for ~$140. If you apply it in Hong Kong, you can only get up to double entries for the same price!

Most of places around Hong Kong are visa-free except for China, Cambodia, Laos and Vietnam. Three of which can be easily apply for while you're in Hong Kong for about $20 each.

Apply for your visa early!