The disc deicer of Caramba is a product in the middle price region, however, the performance is top. The deicer can at -10 degrees felt thick ice (> 0.2mm) to resolve what is even possible relatively quickly. My wife has actually managed to in the vergangegen cold days to one iron their entire car under waste a whole can and entschneien. Just on past use, but it worked!
On the disc not lubricated, the de-icer does not stick like some cheap products and the view is absolutely clear. Clear recommendation. Subjectively also wiper gently.