However, it is best to select one that has lamellas that are more often spaced apart. After completing my experiments with this manufacturer, I will move on to experimenting with others. The benefits of it include: In typical Hong Kong conditions, such as when there is an adequate amount of snowfall, snow between the rows, or sleet, it is not at all problematic and is not noisy. Some cons: The Opel Astra J was unable to function properly in the deep snow during the greatest snowstorm (February 2022).