There's some performances I really like in the EN dub, I think Fleur and Frog are both actually among the best in the game, but my favorite characters have among the worst voice acting in the entire game and it's not even close. Either that, or they're Cartethyia and Lupa and just don't sound right to me, no matter how much I hear them.
If there was more quality control and they went back to redo a large chunk of the old cast, I'd probably switch to EN, because I still think Persona, Xenoblade, and especially Blazblue is an achievable metric for other games to strive for when it comes to EN dubs.