Alfonso Giraldez, aka Banshee, is one of the best painters out there (imho) and he always talks about the high quality of the Citadel pigments, and uses them just like he uses Vallejo and other brands.
I can not understand why must a painter limit himself to a brand, instead of choosing whatever he likes more from here and there.
True, but why must GW make things so hard for serious painters to get comfortable with a paint color when they constantly discontinue things? I now know to not take anything for granted, never assuming that a product will still be there next month when I might need to get more, because of this appalling new habit of discarding, discontinuing and abandoning things we buy from them.
That shows me a great desperation for raising money fast, and also a lack of faith in, and respect for their own product. It makes absolutely no sense to me at all that colors like Utramarine Blue, Blood Red, Chaos Black, Mithril Silver, Boltgun Metal, Skull White and all those colors which have become synonymous with the Citadel Name and GW trademark, which we all grew up with have somehow been discarded like last year's lead models. It makes no bloody sense to me at all!
I look at Vallejo's enormous range and they have colors and sets that they add new colors to, yet never seem to discontinue items from. That shows me they care about their customer as well as trust their product line as well as are comfortable with their products' ability to generate profit regardless of how many people buy this paint or that paint, new or old, etc.
Though I've not yet tried them, I have no doubt their new paints are not bad. And though some might seem to be a bit gimicky, their new products are probably worth buying, sure. But why they could not have been an addition to the range, and not an all-out replacement thereof, is a mystery.