Jardin du sud is as cheap and passable add it gets. The hours aren't particularly great, I don't think they deliver, the service, food and location are utterly forgettable.
That said, if you're craving cheap HK food in Brossard, this is a safe bet.
It certainly beats sukiyaki or tiki ming or those typical fast food "Chinese" restaurants that seem to be in every corner of the Montreal area.