@ThatGuyThere For ~$17 you can get a bunch of the current series' first four issue storylines in PDF form. https://bundleofholding.com/presents/Valiant (I say this not to deflect your questions, just to note that currently they are ridiculously cheap to check out.)
Comics-wise, I find myself really interested in the universe. I admit that during Valiant's original tenure, I was WAY more of an Image fanboy in that I valued art over story. I was also 12 years old. I say this to note that the extent of my exposure to Valiant was through the "Deathmate" crossover event; some of the characters are familiar, but I didn't really know them beyond a superficial engagement. (I can say that these days, Valiant no longer holds some of its old license, so there's no Solar, Turok, or Magnus now.)
The current stuff I find intriguing--in part because I now recognize the writers more than I do the artists. (This isn't to say that folks like Steve Englehart weren't worth recognizing back then--I just point to my earlier age comment.) Some of the series are clearly superior to others; I can't quite get interested in Quantum & Woody, but I thought Bloodshot, X-O Manowar, and Ivar, Timewalker were all really neat. So was Rai, for that matter. The "The Valiant" miniseries was also particularly intriguing.
I have not yet had a chance to play the Valiant RPG, but I kind of want to now. It seems like a mix of the Marvel Heroic system and Fate (KIND OF), the latter in terms of "cues" that are meant to help drive stories (although they aren't really central in the way that aspects are for Fate). Because I haven't had the chance to play, I haven't gone through the process of creating an original character to see how that process works compared with the setup for the "feature" characters included in the book.