Stainless steel drinking water pipes, what are the disadvantages?

Why so pissed off? I tell the OP, PE is enough, if VA, then 4 A, and that is just expensive. Now he has to decide.

I'm not pissed off. Your posts just always read as if there is only your opinion and no other. That's why I just pointed out that there are also reasons why someone would want stainless steel and not plastic. You asked about that afterwards.

Strange that you ask about the disadvantages and don’t seem to be interested in the advantages.

I already know the advantages well enough. That’s why I want to install them. I just want to make sure that I haven’t overlooked any disadvantage that is crucial for me.

So Mapress Ode Sunpress or whatever they are all called are state of the art. And the advantage of stainless steel is that it is not attacked. Plastic and stainless steel do their service equally. One drives a car with 4 rings, the other one with a star. Stainless steel is very high-quality and durable. It will also be a price decision.

One disadvantage of stainless steel is the more complex installation. How does it look with Raxinox from Viega? If I understand correctly, it can be installed as flexibly as composite plastic pipes, right? Has anyone had experience with the system?

If the choice for VA is solely due to an aversion to plastic in drinking water installations (plasticizers, etc.), consider that usually the pipes from the waterworks to the house also already consist of plastic pressure pipes.