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I'm not far into Bloodborne myself, but I have played through the Souls games, and from my experience the combat isn't really what these games specialize in. Souls is closer to Metroid than something like Nier Automata; you're there for the exploration first, and the combat second. That's not to say that the combat is insignificant, but if you're looking for complex battle mechanics, you're better off searching in something like Devil May Cry or Nier. Combat in Souls is pretty much pattern memorization and resource management.
The big thing about Souls games (and Bloodborne too, from what I've played thus far), is that while combat isn't the main focus, you do have to have a certain tolerance for failing repeatedly in order to enjoy it. You have to enjoy the prospect of going up against incredibly difficult bosses, some of whom will kill you repeatedly in very cheap ways. Some Souls fans will claim that the combat in these games is "challenging, but always fair," and that is a flat out lie. Instead, the enjoyment comes from an almost masochistic desire to overcome a challenge where the deck is so heavily stacked against you that accomplishment feels like victory.
The grim atmosphere of Souls games suits that feeling pretty well, although from what I've seen of Bloodborne in my playthrough so far, it doesn't quite have the same enjoyable tone.
