I say true. You probably can see what there is to see in Windsor in a few days.
I have a bunch of relatives that live in Windsor. I live across from Windsor in the States.
Windsor has a lot of Italian restaurants that are good in “Little Italy area” as well as around Windsor (I am not partial to Italian foods but everyone I know there is freaking Italian and they swear by it).
Windsor downtown has a bar scene. Nice river front with a Casino.
Other than that it is a boring industrial city.
You are better off going across the border and hit spots around Detroit (not in Detroit, around Detroit).