I have to wonder if Naoto Shibata is related to Tetsuya Shibata in some way or another, because the usage of metal to a demon-slaying themed game makes me wonder if that kind of a connection is possible. Still, this is a great soundtrack, with a couple hit-and-miss parts to it.
I don't find myself as attracted to this one as I do the first one, because the tempo, while given power by metal on Castlevania, is a little slower than the Castlevania tracks that I'm used to. It's not a problem, but a matter of personal taste. Others might not consider this a pet peeve at all.
I recommend both this and the first soundtrack quite highly if you like Castlevania to a genre remix.