Really? Their UI is bloated and ridiculous. On my laptop screen I can see a whopping two stories per page, compared to 10 on reddit. It's confusing, crammed and poorly designed. There's a big useless sidebar on the left where your eye automatically goes to, instead of the content.
It looks exactly like the project of young webdevs straight out of school who are using all the fancy hip new tech and just learned about material design.
EDIT: One quick example of "not putting content first". Take a given story. At the very top, in big, we have the username and their avatar. So to kick off, it seems more like Twitter/Facebook than reddit. The user posting is given more importance than the content itself...