They are fine. I have three of them - the metal one, which actually looks close to former Citadel Chainmail, Dragon Red and plain black. With them I am not using any primers at all - the basecoat serves as a primer, You just have to pick the color accordingly. For example, for my small High Elves project, since many of models are wearing armor, I am spraying them with metal and then doing the rest.
After dipping they look like this - remember, there was no separate basecoat and just some minor highlighting.
And
btw, all hobby stuff made by
GW is heavily overpriced