Have now bought for the umpteenth time the water softener on Amazon.com without problems. The descaler is because I can associate myself with the pros writers almost invariably, very good. The descaler cleans my DeLonghi coffee machines perfectly, including the milk froth for various coffee afterwards is again top notch. A money-saving tip for all users: Mir rich with every cleaning process only takes 100ml Descaler 125ml. The fully automatic thereby cleaned as efficiently and the bottle lasts for five instead of four cleanings. That makes at least a saving of a few Euros. Second tip: I use the descaling solution has run through then and clean paving the way from the milk container to the cup. Try it, you will be amazed at how well this works.