Does the HK Airport Hotel Coach service go to Holiday Inn Kowloon East, please?

I'm afraid not. Then you are advised to take Airport Express to Kowloon Station and then change to a taxi to your hotel, at the cost of around 120HKD. Or take airport shuttle bus no. E22A to get off at Tseung Kwan O Plaza, Po Yap Road and walk to your hotel within several minutes, but the bus duration shall be 80-90min.