In my opinion it comes down to if the opponent has the capability to break through the steinsGATE. Everyone eventually finds a way through, but it can prove to be a demoralizing and unique gameplay challenge that forces them to play by your pace, definitely worth trying at least once if it's called for in a match.
If they're good about beating it, avoid it, if they are a sucker for it, fight them sharpest sword forward.
YO MY BAD THIS IS C0R WRONG LAPTOP
Hah