The pros: loads quickly, impeccable aspiration for a streak-free glass.
spraying water directly from the device on the glass
The -: manual in German and English, not practical.
Water is sprayed on the glass, there is nothing to spread and clean the glass, and then sucks the dirty water mixes with clean water?
After various tests, this device is very handy .... but bring hand sprayer + squeegee provided with a sponge to really clean the glass and then aspirate with this unit for a nickel finish and without a trace ... one then has very clean glass without using a lot of product, quickly and without fatigue.
Value for money, use price: correct