Very good descaler - DeLonghi ESAM 3200 S here for Magnifica

I use the water softener "DeLonghi SER3018 EcoDecalk 500 ml" for descaling the title of my DeLonghi coffee machines. With the result I am always very satisfied. In our neighborhood because we have very hard (chalky) water descaling of the machine is very regularly (some more frequently than every two months) is necessary. Here I sit he prefers to the original, because a favorable no-name product. The descaling agent does exactly what it should. After descaling - I think at least - you can taste it on the coffee a difference that the machine is "clean" again. Can the product highly recommend, therefore, a full five stars!