Suggest you find out if it treats the water for scale.
Generally for a coffee machine you want:
A) particle filtration
B) removal of odours
C) treatment that stops the formation of scale once the water has passed through the filter and into the machine.
WRT equipment service, you can run machines for years without particle filters in some areas with little to no problem and you can run without treatment for odours, but you really shouldnt run without treatment to stop build up of scale. Its the worst of the three when you look at long term effect.