Castlevania season 2 is up on Netflix now if you want to see where it goes after the promising first season.
It doesn't take the step forward in quality that I was hoping for, as there were zero expectations on it to start. The animation still comes off as a bit cheap, action (particularly with the whip) is hard to follow, but the show actually doesn't have that much of it. The eight episodes of season 2 slow it down. The story focuses much more on Dracula and his "generals" (i.e., everyone he knows) and their vampiric babble, while the Belmont, Sifer, Alucard gang doesn't quite have a grand adventure I think some would have hoped for.
In the end, though, most of the episodes still flew by (episode 5 was the exception, although the following episodes more than made up for it) and the primary factor, entertainment, is still there.
Season 3 is apparently coming, and I can't say I won't watch it.