Daffydd, wow, first of all, what a great name you have. Second, yes, I have experience with AK products. My recommendation is to get the black and brown washes (that's all you need for most car needs) and I would also urge you to get their rust/weathering kit that just came out.
There are other products that I recommend if you are planning to do some intense weathering, but if you are not, then you don't need them.