It was OK. There's just too much Grodd here.
At the end of Vol. 2 Grodd shows up with his people in Central City, and for the majority of Vol. 3, Flash teams up with the Rogues to fight them off.
Best parts: When Trickster goes to Grodd to offer his help, and Grodd rips his arm clean off. I laughed a lot. (I'm a sicko).
Iris. They remembered that oops, Vol. 1 kinda threw her somewhere...what did we do with her again? She's a major character! I know, Speed Force limbo Zone.
Bad Parts: did I mention Gorillas? Yup.
So once Barry figures out how to defeat the baddies, it sets up yet another new power for Flash (apparently in the Speed Force Limbo Zone, he's King, and no one can take him).
The last couple issues deal with the people who were stuck in limbo, and they accidentally acquire powers. (there's some borderline racist stuff with an Asian kid, who's always in Yellow and his eyes go Yellow too. No shit, I kid you not!).
The most intriguing part of the whole book though, is who shows up at the very end....nope, not gonna spoil it.
And once again, the art is the selling feature of this book. But the story just doesn't do much for me, but that's OK, I think it's a great book if aimed at teens. There's not enough they can safely read in the Graphic Novel world, but this seems good without seeming to be directly written for 13yr olds.
Read if you like but all you need to know is: Gorillas bad, Flash good, Iris West alive.