If you fill the glass quickly with water, the minimal active carbon of the filter cannot absorb the harmful substances, resulting in them ending up in your stomach. That's why it also has a very small hole for the intake of clean drinking water, so that the small flow of the filter can clean the water. After all, the company clearly states 0.3 liters per minute.

+ value for money
+ small in size
+ very easy installation
+ fits perfectly on 4 different faucets that I tried
+ improvement in water quality is noticeable without measurements
+ easy to find and change spare parts - here: https://www.skroutz.gr/s/21708268/Aquaphor-%CE%91%CE%BD%CF%84%CE%B1%CE%BB%CE%BB%CE%B1%CE%BA%CF%84%CE%B9%CE%BA%CF%8C-%CE%A6%CE%AF%CE%BB%CF%84%CF%81%CE%BF-%CE%9D%CE%B5%CF%81%CE%BF%CF%8D-%CE%B3%CE%B9%CE%B1-%CE%92%CF%81%CF%8D%CF%83%CE%B7-Topaz-0-7-%CE%BCm.html

- very high pressure if you forget and open the faucet abruptly (needs to be done slowly)

It runs quickly and with high pressure, but it has a very small water outlet hole. Maybe because it is installed a little higher? The thin water stream falling into the sink creates a terrible mess, causing splashing and making the surrounding area a mess, and you end up getting wet, especially when washing fruits and vegetables. I think it should have a larger diameter water outlet hole. That is its downside, and I believe even if it were installed lower, it would still splash. I would not buy it again, and that's why I gave it two stars.

Its main flaw is the very low flow rate. Based on its features, it fills a 1-liter water jug in 3 minutes. A 250ml glass of water normally takes over half a minute.

Good water filtration, no smell and taste as water should be. So far, after 2 months of use, there has been no leakage or defect. Be careful when opening the faucet because the water comes out with pressure and it can damage the filter. That's how I ruined the first replacement. It requires a minimal opening of the faucet. The replacement is relatively cheap. I will choose it again.