Pretty quiet as far a I can tell. Though, I have an older vehicle that makes plenty of noise. And kids.
Can't say how it is in snow and I have dedicated winter tires so may not drive these in winter. Ride great on dry and wet pavement so far and charge up steep loose gravel with no issues.
We'll see about mileage I guess.

I put 2 of these tires on my Kia. After doing 3 months of research on other brands, comparing and eliminating, I was surprised to see Nitto had made a tire in this size. Nitto is a renowned name in the off-road competitions, but there wasn't a lot of reviews on this tire. Nitto and Tire Rack gave honest feedback and having these tires on the front of my Kia, I can honestly say they didn't lie. I WILL BE getting these tires again, they've helped my fwd car a lot in mud and snow.

My wife and I have been fans of Nitto tires for years. She needed tires for her SUV and these had a great life expectancy. They look aggressive but again we love Nittos. Initially ride was a bit more harsh and road noise a bit louder than expected but acceptable. After about 100-150 miles the noise is gone and the ride is smooth as glass. 10000 miles and still happy

So far these tires are what I had hoped for. Quiet ride, good handling at highway speeds. Just drove from northern BC to Southern California. Another test will be going home for Christmas in the snow as well as longevity. The jury is still out on that obviously. BTW Kal provides excellent service at Boundary Road.