Shanghai is nice, raising above most of the other cities in China in term of architecture ( both ancient and modern), Art, culture, international event ect.. Meanwhile, this city has a huge scale ( and however one of the best subway's network), therefore it might be hard to create a lot of contacts when you're brand new in "town". Also the general mind seems to be quiet individual, and there's a ferocious competition in all fields, which can be certainly profitable to the city's development itself, for the reason that it pushes companies, services both as people to improve on a daily basis. The negative point that results within, is that fatally, a substantial number of people might be left behind this rush to development and success.