Overall good but a few downsides
It doesn't really have a flavor not that it matters much to me and it dries on matte black as advertised. The biggest downside is it takes a while to dry and will rub off in the meantime if you're not careful. Once it is dry it's very very difficult to rub off it's just a matter of letting it dry (takes maybe 5-10 minutes if not longer)
Rating: 4 stars