I researched water systems for quite awhile, and had a very good one that I liked a lot, but the cost was pretty high, it was difficult to change the filter, it did not replace any minerals nor alkalize the water, and installation was a pain. Then I discovered AquaLiv! The cost was so much lower than all of those other systems and because of that I was a little bit wary...but as time went on, I kept coming back to their website and checking reviews and finally made the plunge. I'm so glad I did! Installation was easy, the filters last longer than the other brand I was using, and the taste is still great. I liked the taste of my other system, but now (I believe b/c of the alkalinity factor) my body actually craves water more than other drinks. I'm still striving to drink a gallon a day, but I know I can do it with AquaLiv water!