I've recently finished reading a hard copy of this book. I have to say that I found it extremely easy to read. Honestly the only thing that is daunting is the length. The shifting perspectives is something one quickly gets used to (if you don't get used to it quickly, Tolstoy wrote more than enough to give you time to get used to it slowly). If you are considering reading/finishing this book, I wouldn't let anything put you off except the length: nothing (i.e. vocabulary, syntax, story lines, etc.) is exceptionally difficult at all.
