Especially not the price-performance ratio. Find him realtiv expensive. He also does not seem to thoroughly dissolve the lime. We always descale when the machine indicates it on the display. Until next notice (about 1 time per month) that you should decalcify, you could tell it clear that the pressure on the hot water spout has subsided.
Since the descaling after about 30 minutes. has already been completed, the relatively short exposure can certainly play a role.
Despite the thorough cleaning after descaling it is still about 4 - to taste 5 cups long!