Wonderful... but
I hold my phone in my right hand most often while reading, frequently with a cup of coffee in the other. The back navigation from an article is in the upper left. With todays large screens reaching that button is from awkward to impossible with my thumb. The app would be improved by moving or adding that navigation to the bottom of the screen, where all thumbs can easily reach the navigation.
The one and only Kelly about Google News, v4.1