Quiver is definitely a great (re)introduction to the Green Arrow mythos. I first read it shortly after I really got into the character thanks to Arrow.
I love how it does a great job covering Oliver's entire history as Green Arrow, from the classic Golden Age/Silver Age days, to the "Hard Traveling Heroes" days, and of course Grell's stuff, and even addressed the contradictions in his character over time. For instance, I love how Roy mentions how Oliver was basically a hypocrite when he spouted his left-wing rhetoric back during the days when he was a 'titan of industry' himself
But a key plot element of that story also highlights a certain preoccupation among the Green Arrow fandom and writers alike. In the story, Ollie basically comes back in his 70's liberal crusader avatar, right out of the halycon days of the O'Neill/Adams era. And we're later told that Oliver's soul deliberately allowed his new soulless 'doppelganger' on earth to be resurrected with those memories only because that was an idealized time in his life when everything was 'perfect' - before the darkness that crept in later.
Of course, Oliver is fully 'restored' with all his memories and his entire history intact by the end of the story...but I couldn't but help reflect on that plot point. It seems a lot of the fandom, like Oliver, is stuck on that 70's take on the character. Which, IMO, is where some of the criticism of Arrow comes in, because that series actually did a great job adapting the Green Arrow mythos, but largely shied away from the O'Neill/Adams run in terms of inspiration.
Can't get enough of this scene!!!