This will be interesting to follow. For years, Detroit has had a serious image problem here in the states as being crime-ridden, rundown, and place you don't want to even visit. There are no supermarket chains in the city limits (unless that's changed in the last 5 years). If you live there, you had go to the suburbs or shop in the little shops with high prices. Infrastructure was a nightmare. And the crime rate wasn't a joke.
I interviewed with a company there 20 years ago and had some dealings with them 10 years ago... no.. I wouldn't move there. Just not my cuppa'.
I wish them luck with this. Detroit has been a failing city for a long time and deserves to come back.