Using a Kindle takes a little adjustment period, but I now prefer it. I read in bed at night and the lighting and ease of holding it compared to a book is much better. IMO, a Kindle is vastly superior to a tablet or phone to read, it is like reading a well illuminated book rather than an LED screen shining in your eyes. Another great feature is being able to tap on a word and have the definition come up in a dictionary or an explanation in Wikipedia. It is one of those items that you will not hesitate to replace if/when it breaks. And, of course, the library has digital copies of about any title you can imagine. I used to have quite a library of physical books, but when we moved, I lost most of my shelf space and donated most of my books. The Kindle takes up little space.
The only disadvantage is the ability to flip to a section easily, especially like in a manual where on line is really frustration compared to paper.