[3PS]

> As my understaning it bring bunch of features out of box, syntax highligh, tab completion etc.?

I think this is a good summary. The best thing about fish is that you don't need to install any plugins to get all of the nice things that other people put a lot of effort into configuring: tab completion, syntax highlighting, and so on. It's also just really comfortably ergonomic in a way that is hard to describe unless you've used it - multiline commands automatically update their indentation as you type, completions for most common programs come pre-bundled, you can easily set environment variables globally across all of your shell instances without fiddling with config files or reloading your shells, and so on.