I love Kitty because it does the things I think are important really well..

It's well-maintained, extremely fast, always responsive, easy to configure, supports ligatures and IBus.

And emoji -- I know, not everybody's cup of tea, but if I'm using my terminal to exchange messages and emails, I want to see those emoji!

Native tabs, panes. And the keyboard shortcuts for handling them is super intuitive.

Some innovative keyboard functionalities. E.g., highlighting all the URLs in the current buffer, so I can open it in the browser with just keyboard shortcuts, same for file paths. One keyboard shortcut let's you open the last output in a pager. So I don't have to `previous-cmd | less` again. There are a lot of small stuff like this.

Configurable to its core.

Broadcast feature which lets you print output to multiple panes.

Plugins (called kittens!) which can extend the functionality a lot. Like ctrl+f in the terminal.

And as the sibling mentioned, well maintained. Kitty is one of the softwares on my "donate-to-when-financially-stable" list.