Features like auto play/pause when removing them from ears, auto pairing, auto turning on and off, auto switching between devices based on which one starts playing - it's just so convenient, after a couple of hours of use you start asking yourself - why haven't we done this before ?
Sound quality is very good, they are also quite loud and produce a lot of bass - definitely louder and with more punch then EarPods included with your iPhone.
Very comfortable and they really do not fall off your ears.
The battery lasts solid 5 hours, and they charge extremely quickly. The case is magnetic so it 'sucks in' your AirPods when you charge them.
Also works with any other bluetooth device - just without those extra features mentioned above.
A bit pricey but you get a great product - and tbh. other 'truly wireless' earphones cost even more so can't say it's overpriced.
Apple keeps banging on about wireless future - and products like this actually start convincing me they are right.
Definitely a recommended buy.