I've never really gotten into Diamine inks, for whatever reason. I think I find the vast array of colors so intimidating that I don't know where to start, combined with the fact that they typically come in a massive 80ml bottle. Back when I was a Goulet Pens Ink Drop member, however, I received a sample of Red Dragon, and I instantly took to this ink. At this year's Atlanta pen show, I picked up this 30ml "mini-Diamine" from the Vanness Pens table, which to me is a great size since I wasn't sure how I would like the ink in heavy rotation.
Red Dragon is fairly saturated, but not saturated enough to smear or bleed a lot. Performance may very depending on paper quality (with very, very cheap paper seeing some bleedthrough), but I have been satisfied. The color is great for a "red ink person" like me: it's not quite "blood red" like some swabs of Diamine Oxblood I have seen, but it's still got a lot of depth and doesn't have the generic "fire engine red" color that you see in other inks, like Skrip (though that particular ink does have its place). Overall, this one has seen regular use since I acquired it, and it will continue to find its way into the rotation.