Very good and quality case, it does exactly all that it says, and it does it correctly. The front membrane does not hinder the touch at all nor the colors of the screen. I have been burned by expensive cases in the past that didn't even fit the phone, so I was cautious. However, the result completely justified me.
I hesitated a lot to order it because of this one negative review I saw here on Skroutz, which was detailed and justified. However, I decided to take the plunge because it had exactly everything I wanted in the specs, and exactly how I wanted it.
In retrospect, I believe that this negative review is likely due to a defective product.

I don't even know how some people bother to design products. Who expects the touch to work properly with a flexible protective membrane that will magically apply to the screen? Have they ever tried it? I bought it just because I assumed that the issue is obvious and therefore solved especially for a product at its price. The result is 30 euros wasted and yet another plastic waste on the planet. Such products should be tested by the seller before they are sold, especially online where the consumer has no idea what they are dealing with.