We have a Delonghi-cup coffee machine. We have already tried other descaler, but the descaling lasts longer and in some cases only the amount that needs to be weighed, etc .. Since I find this Entkalker much better. Faster than the other descaling descaling agent. We also have a very high calcium content, we will continue to use the recommended descaler. As you know but what you have, -> right dosage - etc> recommended by the manufacturer ....
The only thing that bothers me is the price, generally the descaler should be cheaper.