Hong Kong Airport Express free shuttle

After arriving at HK airport on 7 Feb, how do I go to take the free shuttle to Mirador Mansion? How long is the bus journey to my hotel?

On my return back to the airport to fly home, how do I go from Mirador Mansion to the airport. My flight will be 1.15pm and I have to be at the airport around 9.45am for check-in, so what time should I leave from Mirador Mansion and how to get to the airport by bus or MTR the most convenient way? How much will the fare be? Thank you