It's not an easy book to read, for that very reason! It took me twice as long as it usually would for a book of that size - constantly checking back, re-reading sections etc.
Not easy, but very worthwhile.
Episode 1 was excellent, and I will be catching up with the second over the next couple of days. It was a superb book, thoroughly deserving of all the acclaim (including the Booker Prize) that it received, and the screen representation is already better than I could have hoped. Marvellous.