Yea. We debated this one for a while.
There's a "regression to the mean" type of thing going on where every other search engine in the last 20 years just looks like a Google knockoff.
We found that many different types of users love the new layout. It allows you zoom into one dimension of your search, e.g. lots of Reddit results or Medium articles and then also quickly skip to the next.
It will work well on mobile too (though we're focused on desktop for now) where many users are used to scrolling left/right and up/down in e.g. Instagram.
Depending on your input device, it can be more or less intuitive:
Worst case is folks with a single scroll wheel mouse. There you need to use shift+scroll wheel to move horizontally (that actually works in every app and OS).
With trackpads and touch screens it's a lot easier.
For some the layout is busy but especially developers told us they like the higher information density a lot and can avoid opening 20 different tabs to find what they're looking for.
That being said, I understand that it will take some time to adjust to something new and a less-Google-y future.