Are budget earbuds like the Soundcore P30i actually any good?

For under $30 they punch well above their weight on battery life and basic ANC, according to verified-purchase reviewers on Amazon and Walmart. However, community testers caution that the marketed '42dB ANC' figure is essentially marketing — real-world noise reduction is described as 'decent' rather than flagship-class, and sound tuning is bass-heavy out of the box.