It depends what you want to use it for. It's a distraction free device, which has no notifications, web browser, social media, etc. If you get easily distracted by that, then it's worth it as a note taking device IMO.
It's also pretty good IMO for taking meeting notes, because the only things one can do is listen to the meeting, take notes, and doodle (which has been shown to improve attention and detail recall [0]).
Of course, that also applies to a paper notebook and a nice pen.
[0] https://www.health.harvard.edu/blog/the-thinking-benefits-of...