It's barely begun to get off the ground and it's by no means solved the issue of antibiotic resistance, but it's a cause for hope. There's other grounds for excitement too, like deriving new antibiotics from naturally occurring microbes (its how the originals were found but then we rode those coattails for decades without searching for new ones). Also phage therapy, CRISPR based strategies, and microbiome management.

Not solved, but it makes antibiotic resistance look more like our generations Killer Bees.