From Pudong to Grand Central Hotel (Address: No.505 Jiujiang Road, Huangpu District)

we are travelling 3 adults + 1 kid with 3 luggage. Can you suggest the best option to go from Pudong Airport to Grand Central Hotel (505 Jiujiang Road, Huangpu District) ?

is taxi big enough for 4 passengers and 3 luggage ?

if we use maglev train, followed by Metrol Line 2 at LongYang - is it convenient trip ? is the platform transfer far ?