Not worth it at all, get a real plumber to deal with your water quality if you feel it is an issue, not someone who has been duped into making high pressure sales calls disguised by some sort of prize that may or may not materialize. You will spend much less buying from a pro company if you want filtration/softening, Calgary has some of the best water in the world right out of the tap anyhow.
Look up simple H20 on CBC marketplace, trickery, smoke and mirrors and a cash vacuum
I LOVE the filtering system! Our water is so much better. We also have the water softener system and it makes having a shower so much nicer! Totally recommend!