Niagara is very clean and a unique take on launchers. I don't need to fiddle with "home screens" anymore and just have my most used apps right there. And for the less frequently used ones, it's just one swipe with my thumb (see the demo) or with a more targeted search. The launcher was designed of having one hand (primarily thumb use) to use in mind. It prevents me from going down the rabbit hole of adjusting widgets and swiping a lot to find things.

It also has a new update on icons. I finally now have consistent icons even for rare apps (e.g. specific to your country/locale) after a long long time. It honestly feels a lot better when specific apps (designed to catch your attention with the "notification dots") don't stand out.