It was the first time I used such a product. To achieve a good result, I watched about ten videos on YouTube and used three out of the five brushes. You just have to put very little liquid. If you overdo it thinking it's for sure, a lot of droplets remain on the sensor. It's like filling a glass with steam. Not in the abundance, but in the quality.

Easy to use, the sensor cleaned but left some smaller fuzzy marks elsewhere. I think if I passed it one more time, those would also disappear.