I am owner of a recently KM45 with this Dauerpad. Admittedly can brew thus under little additional expense excellent coffee and espresso. The savings compared to the best Padmarke the tastes good but is little more than about 1 cent per cup. This contrasts with the absolutely outrageous price of about 15 euros per cartridge - for Senseo you get to the price already a 6-pack permanent filter incl Aufbewahrungsdose !!