Incredible water quality, even compared to bottled water! The only difficulty is setting it up, since if you get the one with the 7 stages, it doesn't come with instructions, which means you have to guess which stage goes first, etc

I have it for about a month, it hasn't shown any problems at all, the water quality is excellent

It does an excellent job of completely changing the quality of the tap water.

The conductivity I have in my area is at 550 ppm. Very high, that is. A good bottled water, to give you an idea, has around 110-180 units. After filtration, it goes down to as low as 40 ppm. The result is so good that in a few days, bottled water will seem hard to the taste. Personally, in the existing 7 stages of filtration, I installed a filter that reduces salts with very good results. Generally, you can use any filters you want of any brand. There are many options.

It truly is one of the purchases I have made, and I am pleased with the result of the water quality and, of course, with the fact that I stopped carrying six-packs of water every little while. I clarify, however, that this result is achieved only with reverse osmosis filters like this one. All the others are half measures.