Trust that it works well and it does. However, first gen was not as good as after it.

1. Good microphone quality. Not true for first gen after some time in my experience

2. Reliable connection. True most of the time.

3. Apple ecosystem, yes to a small degree. Ability to see battery level is nice.

4. Fast recharge times

5. Endless usage time if using one headphone at a time. It is my preference usage method.

Cons: high price. After several years I expect to find comparable competition. It exists, and i use it, but i lost: 1, 2, 3 from my list. And usability is crap: accidentally touching headphone turns it off.