If you take the bus to Suzhou North Station, walk to the railway station (one stop from the North Station, 10 minute walk), take the 406 and get off at Xindi Center/Xindi Center Shangri-La, opposite Shangri-La.
If you go to South Station by bus, take the 1 express and get off at Xintai Garden. Cross the road and take 406 or 3 1 and get off at Shangri-La, Xindi Center.