Started off way too slow, but ended at a very good pace. The opening 12 scenes were meh (not in the sense of animation, just in laziness), but at least they changed the color of Luffy's jacket. And that's the last one now, so they can't do it again. Best parts were Doflamingo, Whitebeard pwning the giant and the emotional moment between Ace and Garp. I admittedly teared up a little. I didn't for Oars in this episode, because I couldn't help but laugh thinking of the "cracking" noises Ace made that everyone jokes about.
Correct me if I'm wrong, but this episode must have covered a little more than a chapter.