I find Background App Refresh really useful for certain apps. For social media apps like Facebook, Instagram, and Twitter, it keeps the feed updated so I see the latest posts right away. For email apps like Gmail or Outlook, it ensures I get my emails as soon as they arrive. I also keep it enabled for my news apps so I'm always up-to-date with the latest headlines. For fitness apps like MyFitnessPal, it helps keep my data synced across devices. Just remember, while it's handy, it can consume more battery and data, so choose wisely!