Haven't read the issue yet, but I'm really happy with the promotion DC has been giving this book. Grayson will be one of their key books at SDCC for example. Reviews for the book have also been pretty positive, all around the 4-stars/80-85% mark.
I encourage everyone with a Twitter account to follow writers @ HackinTimSeeley and @TomKingTK, artist @ mikeljanin, and colourist @ JeremyCox. You can follow me too, not sure why you would want to, but might as well self-advertise while I'm at it, @jeyshan26.
Now Imma go out and hunt down the Andrew Robinson, Mikel Janin variant, and Batman 75 Jock variant covers... Because they're actually really cool.