A little disappointed that Smoker let down his guard, for Law to be able to pierce through Armament Haki, taking out his heart. At least that is my understanding of it. I guess that only means Smoker still isn't great at using haki, even with being a Vice Admiral. I'm not really upset, just would have liked more fighting maybe?
So Luffy vs Law seems obvious. Will Luffy do any better against Law? Possibly. It's also possible that Luffy gets cut in half, but somehow uses the samurai legs to compensate, and fight accordingly? I have no idea… Law's ability seems to be greatly tuned, that it would affect most people, except the most top tiered fighters in the manga. So a more interesting, more complicated fight seems to be more likely. Meaning, Luffy will probably find himself cut or split in half, and will fight harder in ACT 2 in their battle to come. And his growth level will be apparent in this arc. As will everyone's. I'm glad Tashigi was put together. This means, she has room to improve rather than placed on the side, to be useless.
Harpy, Master, and Law are all doing something sketchy on the island which intrigues me. Want to know! I'd also like to know what happened to Law's crew?
Next chapter, hopefully we see Luffy start to use haki analyzing abilities. To understand what's going on without anyone explaining. So we can start to see this aspect of haki grow on him.