I honestly don't hear much of a difference between Tales and Star Ocean. The music is completly interchangeable for me. Dark Souls is different, I give him that, but it's nothing I would hear out of context and also nothing I would like to see in Eiyuden.
The last soundtrack by him that I enjoyed was back in 2012, for
Labyrinth no Kanata. Absolutely nothing since then. IMO he's miscast for this project.