Finished the first season and I have to agree with AVGN, it looks more like an adaption of CV3 in the style of SotN. It lacks some of the things that make it old school Castlevania if that makes sense. Sure, there's a whip and holy water, and it uses characters from CV3, but there's something off. For starters, they made Dracula sympathetic. The real villain is religion. When the demons killed the bishop I was like yessss lol. Maybe they should have kept it a secret as to why monsters are appearing, have the band together and revealed it at a later point. Now I'm like it's not even Dracula's fault lol.
Also, it was pretty odd that twenty years went by and Lisa hasn't seemed to age one bit lol.
I mean I think the real villain is still Dracula. Him being somewhat sympathetic doesn't forgive what he's doing, it's just way more interesting knowing his motivations besides just "lol bad guy does evil things" and painting the alleged good guys in a not-so-great light makes it not so black and white which is great and completely intentional I think.