Have for my seats already a whole range of remedies, polishes and care by foaming and am using the product from Sonax actually very happy. Had already the original BMW Leather care, visually, the two products do not take much. The leather polish from Sonax is, impregnating restore colors advertised as grooming etc. ... Well ... I have to say that my seat at the factory shine in a lebensbejahendem dark gray and can be distinguished as difficult if the color is now fresh or not. What I can say is that one per seat loose cloth needs, then very strongly shining seats ... me is almost too hard and too greasy ... and that they are very smooth and slippery that. That was the thing I did not like so much. I really liked that the leather is beautifully supple, moisture then drips off almost rüchstandslos and the towels have a very good cleaning effect and taste pleasant. The effect that the seats shine so greasy and you get the feeling to slip right out of your seat keeps has been going on for over a week. But it is now subsided to a degree, with whom I can live very well. All in all I am satisfied, other products cost a lot more and do nothing else. Anyone associated a shiny surface with a good maintenance condition, which is exactly the right product. I would recommend it for black smooth leather rather than bright with perforated surface.