I finished Vampyr (cf. here). It was quite good, but I thought it was too long — or perhaps more to the point, too drawn out. Respawning enemies are annoying, but I suppose they belong to the genre. In the later stages of the game you have enough stamina to just zap past 'em if you don’t want to engage.
You’re also somewhat punished for exploring, in that if you run into an NPC who’s being ambushed you have to save 'em that very night.
PS I played it on “normal” difficulty.