Ceramics on an S8 - good thing or bad thing?

[Greg66]

When window shopping for S8s I've tended to steer clear of cars with ceramics. I'm wondering now whether that has been the right thing to do.

Pros:
Supposedly better braking - can brake later, shorter stopping distance, less fade
No brake dust on your wheels
Should last 100k miles.

Cons:
- Cost a *fortune* to replace, and I have seen a few cars offered for sale with them that say they have been replaced under warranty at relatively low miles
- Can only work out how worn they are by weighing them
- Susceptible to damage when mounting/dismounting wheels or from gravel
- Squeaky when cold
- Less efficient when cold (not entirely sure about this one)
- Potential to use great braking force to smear your tyres onto the road

Interested in views, esp from those who have them. Happy with them? Think they are a gimmick, or an expensive bomb waiting to go off? Or a genuinely useful addition to the car?

TIA