Hemingway's writing style was new and different for me. My mind took a while to adjust to the cadence and context of conversations versus thoughts. One minute you're in Henry's mind. The next you're reading dialogue - without the punctuation. It was odd, but by mid-book I really enjoyed it.
I'm making my way on to The Sun Also Rises, which I've heard is a completely different feel. We'll see if I want to throw that book out the window as well.