Although at first I was excited with the purchase (nice design, good fit on our tap, proper flow), within a short period the flow of the filtered water decreased so much that it is impossible to wait for the container to fill. We supposedly got it to drink filtered water and to use it for the baby's bottle for milk, and we can barely stand waiting for the bottle to fill (we haven't drunk filtered water ourselves for a while now). We have already ordered another filter (from a different company).

The problem is the flow that decreases desperately much within 2 weeks and it becomes impossible to wait.

It leaks, you need to secure it with a different rubber band than the ones it comes with. Nevertheless, you can see when the filter needs changing through a transparent spot.

After two months, I notice a taste in the water. The flow is still fine but with very small white bubble-like things in the water that are not bubbles because they don't disappear. Overall, for a Japanese product, I had higher expectations.

Very good. Clean water without odors. However, something is needed at the outlet of the unfiltered water to prevent splashing.

Quality construction with a stable function switch, Initially, it has 3 functions - flow without filter - rain without filter - flow from the filter. It noticeably increases the pressure when rinsing dishes. The water has a quality taste and you can feel the difference. Be careful during installation, the adapter that will connect to the faucet needs to be tightened very well with a coin (a dime fits) to avoid dripping from above when using the filter.

It has instructions in Greek and is very easy to install. I put it in 5 minutes without any problem. The taste of the water changed a lot for the better in the end

Installation super easy in 3 minutes, no leaks, very good quality and instructions in Greek, which I didn't need since it's not the first time I've installed a faucet filter.

update 2/11/2024: I change my rating to 2 stars, as after the first 300 liters of use, the water flow from the filter decreases significantly.

Mine comes with instructions in Greek and I installed it in 5 minutes without any special skills with these things. It cleans the water and doesn't smell like plastic. That's why I got it

Very easy installation. Quite a good flow, almost as much as the regular faucet. The water has a more neutral taste and is a bit more astringent. I will open it up to see what's going on after a while. The only sure thing is that it gets the job done and importantly, the water tastes nice

Very easy installation on my faucet, and the first impressions are very good.

The easiest test is to put water from the free supply and smell the glass. In my area, it will immediately smell of chlorine. Putting water from the filter smells like nothing.

It also has a very good water flow from the filter. It fills a water bottle quite quickly, which I didn't expect.

The positives for me are that the filter has this transparent window so you have a rough idea of its condition

I always use a water filter on the faucet. It is the first filter that took 4 hours to install and seal. First of all, it has no instructions in Greek or even in English. The shapes are helpful but not sufficient. The quality of the materials, especially the adapters, is very poor. No matter how I placed it, it always leaked. The white plastic adapter broke immediately. Only the blue one remained. I tried other rubber bands, Teflon on the threads, tightening more or less, but the leak continued. Eventually, through trial and error, the solution was found. A sealing rubber was placed at the junction of the adapter with the main body, which did not exist or was not intended to exist, and the leak stopped. So we got an inconspicuous tricolor filter. I would not buy it again

Very satisfied so far. Those who have tried the water since we installed it have been thrilled.

Water quality: Thessaloniki Center.
Flawless to a degree that I almost couldn't believe it. It still seems strange to me that I am now drinking from the tap. It filters everything and leaves no taste of chlorine/salts, etc. With the 3 levels of filtration, it is ideal especially for our apartment building, where the pipes are from the '60s.
Also, considering that the city's water supply comes from Aliakmonas, it is an extra step of protection.
I highly recommend it. Especially for those who drink from plastic bottles. You will recover the cost in about 3 months and you will be saved from the disruption of your hormones caused by plastics.
Relatively expensive replacement part, but you get what you pay for...

Very nice filter and very nice construction!! Initially, my faucet could accept 2 out of the 3 connectors that the package provides, and this is because the faucet had a built-in adapter. So, I installed one of the connectors on this adapter, but I noticed that it was leaking. I spoke with the store's customer service where I purchased it, and they were very helpful and polite. Eventually, they advised me to install the second connector by removing the adapter from my faucet, and it worked perfectly!!!

I received the filter 101 just a few hours ago.
The instructions are either for purchases from Japan or China, i.e. with ideograms.
The diagrams are confusing, I am referring to the adapters that come with it.
The one that fit my faucet leaked on the first attempt, resulting in water dripping. The quality of the plastic, all the adapters are plastic, is simply terrible.
I will contact the seller tomorrow to see if there is a replacement and I will update.
For the price, I expected better quality. As for the water filtering, I will also update.
8/11
Update, after contacting the seller, they were polite and helpful.
They sent me a new adapter at their expense. It took a little Teflon and some careful screwing to seal it to the faucet. The water quality from the filter is possibly the best I have tried so far!
I don't give it five stars because of the minor inconvenience with the initial fitting.

I have it for almost half a year and it hasn't had any issues. It does a very good job in water cleaning, it doesn't leave any odors. The pressure is good. Installation is very easy.