Only used it for a month and so far I am very happy with the setup. I love the idea of having a dedicated faucet that matches our regular faucet perfectly. The water taste great. We had a professional plummer install the unit and it was a breeze.
It's not that difficult to install...about 2 hours. Once you're done, you will enjoy clean tasting water to drink and cook with. I use it everyday and feel very good about it.
We previously had an osmosis water filter system with a large tank under the kitchen sink as well as a row of 4 large filters. It was very noisy; gurgling and hissing all the time. We love the Aquasauna system which is noiseless! My husband installed it and he is not your typical handyman, so it was not difficult. We love the clean taste and it has a good output of water. We were afraid it might be low volume and take forever to fill up a glass, etc. but not true. It has a good flow, and just as much volume as the osmosis system had.
Pros: Clean taste, Compact, Durable, Easy, Easy to clean, Easy to install, Long lasting filter, Quiet, Tasty