My opinion concerns a test I conducted with a jug "Navelia" Carafe Filtrante "Pink Kiss" brand "Brita" we usually use with cartridges "Maxtra" since "Evolve" cartridges compatible with this product type. Although I'm not a scientist (impossible for me to indicate a filtered water analysis comparative) but a mere consumer, so I just said what I have noticed in use. Benefits cartridge "Evolve" - The ultra competitive purchase price since Cartridge "Evolve" the particularity duration 2 Months unlike a cartridge "Brita" with a life of 1 month. - The filtered water flows much faster. But "big unknown", this advantage filtered water that flows much faster through the filter, he affects the final quality of water treatment .... I ' know. Disadvantage Cartridge "Evolve" - The cartridge "Evolve" yet in place in the slot at the bottom of my decanter, I noticed that there was still standing water around a good centimeter at the base of the cartridge, which is very difficult because when one uses a glass, the carafe inclined obviously to pay, this unfiltered water eventually be transferred into the water filtered through the spout and to rest in the glass ... Downside: Even if the water is free of all bad "taste" in the mouth, as with a branded cartridge "Brita", I find that the water filtered with a cartridge "Evolve" is more "heavy" to digest, review again quite personal. In summary: Cartridge quality / normal price, more or less ...