Have tried in recent years a lot, including Quick Detailer from other well-known manufacturers, and was never really satisfied. Either the gloss effect is not there, or the application was to be desired. But in almost all cases, adopted the spray head of the bottle after half of the filling. Everything here seems to be very well: the bottle makes a very valued and solid impression, and the brilliant performance is also convincing. It pulls no streaks (have a black paint), and slips easily in the application, so that man can also combine clay bar without smearing here. Water runs off well. I can not say much because I treat my car every week over the long-term effect. For me, anyway, the best thing I've ever had.
