Water softening systems - which provider?

Hi,
I am currently looking for a water softening system that we want to install during the ongoing major renovation.
On the internet, you find A LOT of manufacturers and many comparison portals, all recommending different manufacturers.

That’s why I’m here to ask for experiences/recommendations.

I have already narrowed down the search to 3 manufacturers that might be worth considering:
(Of course, I am also open to other manufacturers, experience reports would be appreciated)
-Water2Buy
-Aqmos
-Alfiltra.

Please no reports or recommendations about Grünbeck systems, they are simply overpriced and definitely won’t come into my house.

Here are the requirements:
-Sufficient capacity/throughput for a 1-2 person household (without a bathtub) with incoming water hardness of 18°dH.
-As low maintenance as possible / easy maintenance.
-Adjustable regeneration intervals (to always carry out at night).
-App connectivity is not mandatory.

Is there a floor drain in the room where the water softening system is located? If not, the device should provide leakage protection, otherwise it could get nasty if something goes wrong. I cannot provide any experience yet, but we will be using the Syr Lex Plus 10 connect in conjunction with the Syr Safe Tech Plus connect as leakage protection. The latter is not only for the softening system but for the entire house.

Is there a floor drain in the room where the water softening system is located? If not, the device should provide leak protection, otherwise it could get nasty if something goes wrong.
Unfortunately, I cannot provide any experience yet, but we will use the Syr Lex Plus 10 connect together with the Syr Safe Tech Plus connect as leak protection. The latter is not only for the softening system but for the whole house.

Since the system will be installed in the basement together with the washing machine, heating, and heating distribution, we are, of course, also planning a water sensor on the floor.

One more short explanation why no Grünbeck. It’s simply because Grünbeck does not use other/better parts than the "cheap" manufacturers, the only reason why Grünbeck is so expensive is the DVGW certification which is very costly and of course gladly passed on to the uninformed customer. For me, a non-DVGW certified system is perfectly sufficient as these are just as good as certified systems with most manufacturers.

Hello everyone, I also got stuck at Aqmos Cm-80. It would be a great system. At a good price. It's just that if a system does not have DVGW certification and there is damage regarding leakage or contaminated return water into the supply line... No insurance coverage. I now have to reluctantly look for something else. That these systems are too expensive is beyond question. Unfortunately, you keep hearing that a municipality has to chlorinate water. Mostly a return to such systems without DVGW. Missing system separator etc. Here we are talking about a five-figure amount that no insurance pays. Unfortunately, these are the facts.

It is just that if a system does not have DVGW certification and there is a damage regarding leakage or contaminated return water into the supply line... No insurance coverage.

Do you have a link with more information about this? I couldn't find anything, maybe I used the wrong search terms.

Which insurance covers such damage?