A big step up from the first, story-wise, as we move away from simple one-shots into longer and more involving arcs, with far more room for characters to spread out and breathe.
The villain has some depth to him, twisted personality and villainous gluttony and even a weak spot remaining in his poor slimy heart - and said weak spot, his daughter, experiences a bit of growth of her own, being convinced to step out of her room's confines in a silent scene that I quite enjoyed. And Guts himself... well, he still comes across as an enormous douche and those small pangs of conscience feel more a cop-out than anything, to keep us from completely hating him without otherwise having as much meaning to them - but the bit where Puck insinuates him of being the same as poor old Vargas, weak and helpless in the face of his mighty foes yet continuing to put up a desperate battle regardless, was honestly pretty great.
I'm not sure I'm buying the rarity and obscurity of Behelits, though. Even later on in the story it turns out the Apostles are actually pretty common - you'd think there'd be some sagely lore going around about what they are and how they became this way. The God Hand must be running overtime keeping it as mysterious as it is.
Let's say three and half stars. We're getting there.