Its everything. You just have to try it, the sound is phenomenol and you drown out a ton of ambient noise so you can keep the volume much lower and hear much more.
If I disliked someone and wanted them to go deaf, I would recommend non-Pro AirPods haha. You're in for a treat :)
No, certainly not. Mainly talking about on public transport or shopping areas, you'd be amazed doing a comparison twst with them on and off, realizing how loud public areas can be without knowing if not for the comparison
Can confirm. If you wish to listen to something while in the train/subway or in some other noisy environments, such as a bus stop right next to a busy road, ANC really helps a lot. Obviously, it’s no replacement for proper hearing protection, but instead of cranking up the volume through the roof, you can listen to things at a very reasonable volume despite the noisy environment.