This would have been a lot more interesting if it had done the Dracula's Curse thing wherein both characters had unique situational utility. Alucard has a big hitbox but long range, Grant has a small hitbox and can climb up walls but has short range. Charlotte and Jonathan play in the exact same way except their attacks, so when I get into a rhythm with one character I don't really feel the need to switch, even when one has an attack which is marginally better against a specific enemy. The whole double protagonist gimmick feels like a waste.
Double protagonist gimmick aside, the main fresh thing about this game was just making it take place a bit outside the Castle in more exotic locations to just mix up something that as becoming the Megaman of churned-out (but still good) titles.
better than Dawn of Sorrow