I see that the product does its job and it was economical. I spray it on a microfiber cloth for glass and wipe once. Then I turn the cloth to the other side and wipe a second time. At first, until it dries, it looks like it's foggy, but after it dries, it's 'crystal clear.'.

It does the job but I think it's an unnecessary purchase. With a liquid from the same company for all surfaces, they still clean just fine.

I don't know if I did something wrong, but with a new cloth from the same company it left a lot of streaks, I also used it with another glass cloth, same result again, with kitchen paper the result was a little better but there were still streaks left, I won't use it again, unfortunately from what I had read I thought I had found the perfect cleaner because I'm a bit picky about the cleanliness of the windshield, but.....

Excellent product for glass from K2! It offers a good quantity (1lt) for its price. Personally, I combine it with a cloth, also from K2 (Glasa pro), which is only for glass, so I get the best result. The spray head is adjustable. Also, its scent is wonderful. I highly recommend it!

Very good, powerful glass cleaner at a very good price. The spray head is quite clever, you can switch between foam position or mist spray position depending on the use. It has strong cleaning ability without a chemical smell but with a very pleasant fragrance. Regarding comments questioning its effectiveness and that it leaves streaks, I would like to remind everyone of the correct way to use glass cleaners, which is done using two microfiber cloths. With one cloth, we apply the product and rub any stubborn stains, and with the other cloth, we immediately wipe and polish the surface.

It cleans indeed, but leaves streaks. And with a brand new microfiber cloth. Also, it is in foam form and not spray, so it sprays a little more directed than I would like. I don't know if I will buy it again, I will look for something else.

Nothing more than a cheap household glass cleaner. The simple branded ones from the supermarket are clearly better and much cheaper.

Medium to decent product, I would say, compared to other similar ones from different companies that I have tried. It does clean, but it takes some effort. It doesn't directly remove dried water stains and requires a little polishing, but in the end, it gets the job done. Of course, considering its price, it's fair

Really excellent product for cleaning windows. Just a piece of kitchen paper is enough for the initial wipe and a microfiber cloth for the final wipe to achieve a flawless result.