You get scale even using distilled water?
I’ve never de-scaled any of our equipment, but we mostly use water from the main kitchen supply which passes through a pretty robust, inline 2-stage filtering system. I do occasionally grab water from the main fridge which has a really good filter too, but probably the “cleanse” from the 2-stage keeps it super clean.
Heck, our little single serve upstairs is 6 years old, and never de-scaled and has been heavily used.
Again, YMMV, following the prescribed maintenance process will keep any equipment functioning as good as possible.
Neither make enough coffee for me.
Well, you can only drink one cup at a time, and a big K will make like 6-8 large cups without a refill.