Impacts of migration linked with Brexit

Newsnight last night came from Boston in Lincolnshire, where there's been a large amount of immigration of workers from the EU, and has been in the news several times as an 'example' of a place that has changed as a result. Have those changes been positive or not, and how has the current make-up of the town reflected previous patterns of employment?
There's a useful BBC news article HERE.


Or, for the next month you can watch the programme HERE - watch from around 7'40" in to see the section which relates to the BBC news article.
Useful for Year 10-13 to watch in particular.