I bought chocolate at a stock of 4990. Water consumption due to reverse osmosis is not particularly noticed on the counters. Family of 4 people. Has pros: Good filtration. Some write about some kind of plastic, I had a kit with a metal tank. No leaks, etc. It’s easy to check the quality, you drink from the filter and immediately take a sip from the tap, a gag reflex on your face. The teapot has been without white scale for two months already (the teapot is glass) earlier, on the third day, white deposits have already begun. Its cons: Well, you can find fault with the large space occupied under the sink. But since the sink is double, for me this minus is not critical.