After 1 year of use, this is my feeling. The vacuum squeegee will dry the glass. By cons, as I'm manic, in the end I finished with a dry cloth to remove the traces left by the squeegee. In the end, this device allows a time saving. The result is satisfactory. The contour is no longer wet. Besides washing the product, sold by Karcher, is very effective for both washing the few traces left drying. But this product has a higher price than conventional glass products.
4 stars because I end with a quick blow dry, low autonomy about 20 minutes, I find the price a bit high. But overall, I do not regret this purchase and would recommend.
