Bought a 2019 LX On October 31st, 2018. Other than a lot of road noise the car is flawless. Hope it lasts as long as my Kia Soul has, which I still have.
Welcome, how many mile do you have on your Niro do far?
Road noise is pretty typical of the sort of low rolling resistance tires used on the Niro and other high mpg cars. Seems like a reasonable trade-off to me, but if you find it bothersome you could switch to a normal, more compliant tire that would help reduce the noise level at some cost to efficiency.