Black fittings limescale experiences?

Hello,

so we have now decided on black fittings. What we still need to decide is whether to get the fittings with CoolStart / Cold Start or not.

What experience have you had with the system (regardless of the manufacturer)? (In the middle position comes cold water, warm water is only added after turning). Basically, it is supposed to save some energy because the instant water heater / central heating does not always turn on, e.g. with short handwashing.

I think the guests will be surprised when they use the fittings for the first time :D.

Regards

If you don't have hot water recirculation, you can also skip it. Makes no difference

I would pay not to have this feature.

Cold start is the biggest nonsense there is

Okay thanks for your opinions, then it probably won't be a cold start :D