As a very long time Arch user I wouldn’t say “easy” like everyone else seems to. I absolutely would not suggest it for a first distro for someone, which is what I would classify as the “easy” level.
But if you’re comfortable with using Linux, the terminal, and being able to follow written documentation you’ll be able to do it just fine maybe with a little frustration the first time. If you’re installing to a laptop, make sure to look up your model on the wiki first.