I have two Xikar V cutters and the Wolf. They are the same blade, and I found the Wolf on Amazon during a search for Xikar, $18. There is no question the metal Xikars are nicer to use but there is absolutely nothing wrong with the Wolf's cut quality.
And in fact I have taken the Xikars apart, polished them, and made them much smoother; they aren't perfect either. Then custom painted them and my Enigma lighter to match.