I've noticed that certain chains of restaurants are marketed differently in various countries, and Pizza Hut is no different. The Pizza Hut in Australia is pretty standard from what I recall (it's been a really long time since I've ordered anything from there). Decor is basic and you have your usual fare - pizza, pasta, garlic bread, soft drinks.
In Hongkers, it's a lot more upmarket - classier furnishings, a line to get in (but I think that applies to most eateries in HK) and quite a comprehensive menu featuring pizza, pasta, garlic bread, soft drink, but also various salads, stuffed chicken wings, soups, entree platters and exotic beverages. What really pushes it over the top though is the dessert.
Who would have thought Pizza Hut served something like this??
There are even customised Pizza Hut skewers for the fruit. :D