I've had excellent experience connecting in HKG. Indeed I would class it pretty much near the top for connections in large airports. It's a very efficient operation. I have memories of doing a LAX-HKG-KUL all on CX. The LAX-HKG ran late, but we were boarding the HKG-KUL flight 20 minutes after landing in HKG. Beat that. Amazingly even our checked-in bags made the connection.