I've always resented water spots, especially in plastic containers. Since I have to use rinse aid the story! The dishes are perfectly clean. Glasses shine much longer and everything feels much cleaner and drier.
It works beautifully whether. With original Somat-Tabs or with discounters tabs (I take All-in-1 tabs, so I also have to add no salt.)
I am very satisfied and will keep this in rinse aid Sparabo.