
If youre someone who reads 2+ books a month you will make your money back on kindle unlimited. I hate amazon and authors get jack shit from it but from the consumer end its cheap. I wouldnt say theres any benefit over libby worth the $12/13 if youre already comfortable with libby since libby is free but you never need to wait for a book, theres no time limit to read it, and you can hold 20 in your library at a time so even if something gets removed from KU if its in your library you keep access
You can look up definitions by highlighting a word. You can highlight phrases and add notes to them and they get saved (plus synced to Goodreads, if you use that). You can read at night without a light. You can change the front and its size to what’s most comfortable. Brightness and tone, too.