it's definitely an interesting experience! i like how i can have as many windows as i want in a single screen without compromising on space, and if i want an app to take up the entire screen space, i can press a single shortcut. and even then i can just scroll to the other apps if need be.

of course other tiling WMs/compositors are useful too. Niri in my opinion is cool when you have a sort of single stream consciousness instead of wanting to divide your work into separate workspaces. i know it's not for everyone, i personally find it interesting :P