Paradise Lost isn't an easy read, but with a little preparation is doable. It's a masterpiece and it shows. The fact that we can still be inspired by this work of art after centuries says it all. If you're debating reading Paradise Lost, do IT. But, I suggest, it's best to read in a moment when you don't have much to do, when you can relax with your book and give it full attention. It's not a book for the train while commuting.