My personal impression: I am very satisfied! The disc does not without difficulty, what to do ... to produce hot water in selectable amounts. For this I must not ruin in the Stickers I NEN cut code and I had never problems with iwelche plastic particles or plastic taste my cleaning disc.
The advantage of this disc: I need no kettle next time I'm just quickly need one or two cups of hot water and it goes again significantly faster than with kettle. Larger quantities are indeed meaningful in the kettle - no question.
Disadvantage: Yes you have to take out the punching device. But that is a short pressure from below - zack out and then reinsert it, short pressure from above - zack it. So whoever complains because NEN Butler or ne housekeeper is expected to grow;) Ich finds nich bad & especially one realized by to take out from the punching device & that time again would be the part to be cleaned properly; D
Unfortunately, yes, the disc will cost a little ... clearly it could be less, I agree with you, but you can buy once and is good and the setting of the variable quantity is precisely the technology you pay.
For the price & that the punching device must be taken out there 1 star deduction, otherwise I am thrilled and can zufieden a strong buy recommendation give =)