It's beyond me why would anyone move to Shanghai in 2017, that's already after T left China after spending there better half of decade because of how unbeareable it became with Xi coming to power and that was many years before 2017 with tightening screws in every aspect of (foreigner's) life. China peaked some time between 2008 and Xi being elected, since his election it's all going downhill very quickly.

Btw. as Beijinger who spent few weeks in Shanghai on business trips I've never understood appeal of Shanghai, I'd much rather go for Shenzhen or Chengdu as alternatives to Beijing.