A small amount of product goes a long way, but the cut is very subtle. Only minor blemishes and swirls will disappear with one cut, especially on hard (top quality) paint finishes such as those found on BMW and Mercedes. That's the way it should be. Would not use anything else.
Perfect finish restored in seconds using only a few drops.
Top stuff. If you have paint that's been dulled by using cutting compounds or 'Magic Cloth' to remove scratches, this will restore the shine in seconds. It gave a mirror finish to my black BMW. It was impossible to tell where I had made the repairs.