Hong Kong Shenzhen Metropole

We are thinking of moving to Shenzhen and our family includes two children, ages six and five. I am nervous because we do not speak chinese. What is the city like- is there a comparable US city? I know that it is very industrial, but what are some of the positives of living there, and the negatives? Thanks!

I’ll be travelling to Guangzhou and Shenzhen, China on the first week of February. I’d like to know how exactly the weather is. I’ve packed warm clothing like a thick padded jacket and scarves and fleece hats. Will I be needing thoe or will I end up not wearing them? I feel cold easily though, so I’m just wondering if i’ve packed the right clothing, I dont want tpo end up bringing useless stuff during my travel. So help!