It is good for dust. However, for insects, not at all. As a cleaner, I didn't see any difference compared to the cheap one from the supermarket. I have to admit though that when it says concentrated, it means it! By diluting it according to the instructions with distilled water, it lasted me a year! As for whether it freezes, I have no opinion as I live in the center of Athens...

Good liquid, easily cleans the glass without too much foam. However, I did not see a tremendous result on heavy dirt and you need to literally wash the windshield to clean it properly. I think there are more effective products on the market.

Very good, I mean it.

First of all, it is concentrated, so you need to dilute it yourself. I recommend distilled water, but it is not necessary. It is not difficult to dissolve it as it has the percentages on the sticker. My car takes 4 liters in the water tank, so I use a 1:8 ratio, which gives me about ten fillings. The recommended ratio is 1:9, but I make it a little more concentrated.

Its two main advantages are:

1) It also works as an antifreeze, from -3 to -45 degrees Celsius, so it is very helpful in winter, especially in northern Greece. Also, in extreme cases, you can put a little bit in an empty bottle and spray it on the lock and windows to melt the ice and snow without effort.
2) Besides cleaning dirt, it contains enzymes that help break down insects' proteins, so the glass does not get damaged and it cleans more easily and quickly.
3) It does not harm the windshield wipers, neither the regular ones made of rubber nor the ones made of silicone. It also functions as a lubricant, so the wipers do not wear out easily and last longer.

Lastly, it works as a hydrophobic on its own, and if you combine it with AutoGlym Car Glass Polish, the water will not stick to the windshield.