The dub was produced by Funimation (now Crunchyroll ) and features several high-profile voice actors:

The anime concludes with a somewhat open ending that leaves several plot threads unresolved, as it only adapts a portion of the original light novels. Community Perspectives

The English release features a 5.1 Surround Sound track, which reviewers noted does the action sequences more justice than the Japanese 2.0 Stereo track.

Voices the demon sword with a human form. Dub vs. Sub Comparison

“I found it very forgettable. Dub itself was fine just the show felt like pretty generic fantasy.” Reddit · r/Animedubs · 6 years ago

Some viewers found the original Japanese cast sounded as if they were "reading off scripts," whereas the English cast consists of industry veterans who bring more life to the characters.