I loved the book through Messiah Complex. It was up and down after that (though I'll admit when he was up he was WAY up). But for me, the book stopped being enjoyable once Madrox and Layla returned from the future. I'd love to see someone else's take on the book.
As for me, I'm hoping for another PAD Spider-Man 2099 book during the Marvel NOW wave 2.
And nice Gladiator Avatar