Apparently, the niro has great suspension and handling which helps with the vehicle's cornering.
The rear cargo is spacious enough and if you take off the cover, you can probably stack a bit more without blocking your rear view.
That might be something that helps them pull in those who have been initially interested in Mazda but open to other brands. But the current CX-3 is sort of hard not to consider. But there will be that group of people that might find the Niro more practical. All the practicality someone wants, with the sportiness they desire = ultimate package.