8 people, 4 adults, 4 children, from Shanghai Pudong to Renaissance Yu Garden hotel

Well, according to your situation, you are advised to take a taxi from PVG to your hotel. This would be a convenient way for you to choose. Notably, one cab only only accept 4 passengers at a time. So you can hire two. For one cab, it would cost CNY 170-180 in the day time.