What is the most convenient and economical way from HKIA to Cosmo Hotel in Wanchai?

Hi, you can take bus no.E11 from HKIA to Admiralty Station, Queensway. Then transfer to take tram from Queensway (Admiralty MTR Station) to Hennessy Road (Tonnochy Road). It takes around 1.5 hours on the way. The ticket fare is around 23 HKD per person. Afterwards, walk south around 300 yards to find the destination.