Nioh is a very different game from the Souls series as well as Bloodborne.
Bloodborne isn't very different from the Souls series though.
Currently I am playing through Bloodborne as well since it was free and I am about 2/3s through the game. But yeah farming for blood vials is really annoying, the lantern placements are also pretty annoying and useless for the most part. Going back to base always demotivates me a bit, but that isn't too different from Dark Souls 3. Only thing is the lanterns don't allow you to do anything but return to base. The monsters in Bloodborne are a bit more frustrating than Dark Souls 3, as well as minor hit box annoyances.
So far I like Nioh> Dark Souls 3= Bloodborne.
Some things are better, some things are worse. But I think Bloodborne is definitely worth playing.
Edit: Oh and I will say if you struggled on Father Gascoigne then the game or your build might not be for you. Future bosses are a lot harder and a lot more cheap than Father Gascoigne. He is quite possibly one of the most fair bosses I fought out of them all.