x3 on solutions finish. Havn't sampled much else tbh.. but the solutions finish provided a deep black and what impressed me the most was how easy it was to apply and how such a little bit went a looooooooooooooooooooong way. I've done about 4-5 cars AND gave my buddy enough to do 2 of his cars and still have 3/4 of the 1oz bottle left. Virtually 1 drop of this stuff can do a whole lot. Just bought the 12 oz bottle