So far this filter has lasted over 6 months and it's still going. It is used daily for a family of 6. The water is amazing. In general, the water in the foothills is already pretty good, but when you add this filter it tastes like bottled water every time. I would definitely recommend.
The only downside is the cost, however, you don't need to replace it as often as normal filters so you are definitely getting your moneys worth out of it. You'll get about 300 gallons out of it but I'm sure you'll get excellent tasting water way beyond that.