Have one on order and plan to use as one of my readers. I actually like reading ebooks on a phone, when it's straight prose and the content layout works well on the narrow screen.

Looks like a sweet upgrade over my S8. Although from a perspective of reading ebooks, I don't think it'll be that much different. In fact I'm planning to keep my S8 as a backup phone and as a wifi-only device primarily for reading ebooks and saving the battery in my primary phone.