How to get to Zhejiang Intercontinental on Sunday 15/2/15 at 10:50 am from Hangzhou airport.

We would prefer to take the city or shuttle bus for the main part of the journey but may have to change to a taxi once in the city...
Busses are preferred as they are higher and allow a better view but will take much longer than a taxi all the way? And how much will it cost?
Thank you.