What a strange, strange little book.
After what I considered to be the stunning volume 4, this volume was kind of a mess. Gail Simone is a great writer and has quickly become one of my favorite writers, and she wrote a very clear story that built to an excellent climax in volume 4 and developed Barbara's character along a clear arc. And while this volume isn't necessarily bad, it doesn't gel as a unit, nor does it fit in very well with the rest of Simone's run on Batgirl.
It might be more accurate to describe Deadline as a series of mostly-unrelated standalone stories. It's also painfully obvious that many of these stories tie in to larger arcs in other comics, namely Batman, Detective, or Birds of Prey...I haven't actually read those books and I doubt I will. So while I understand that they do fit in somewhere, out of context, they make little sense.
I also couldn't get over the feeling that I was missing important information. There were gaps in the story, and again, I'm confident that these bits are actually in other titles, but it's just frustrating to not have them all in one coherent place. But that's comics for you, no? Nature of the beast.
There were some positives, however. First off, I ended up reading this a day after Halloween, and it's actually quite a spooky little volume with lots of paranormal wackiness in it. Perfect Halloween read, and not even done on purpose on my part. Highlights include Silver the vampire hunter and the Midnight Man, both of which were utterly unreal, spooky, and maybe a bit out of Batgirl's depth, which was pretty cool to see her react to. We also have a bizarre little story where Barbara finds herself in a sugar-coated alternate reality where Gotham is perfect and nothing bad ever happens...except when it does (though the story has no real resolution, which again, I know, tie-in event, but still confusing). She also faces off against the rag doll, which was appropriately unsettling.
Other issues included a strange little stories about Poison Ivy's Seasonal Mood Disorder, that obviously tied in to something in Birds of Prey and was rather confusing to read on its own. The book also ends with a really odd-ball future-story in which Barbara apprentices Bane...this story was the most off-the-wall, and really was a strange choice to end the book with, but again, that's comics for you.
Lastly, and the main reason to read the book, really, is the Deadline arc, where Batgirl finally faces off with Knightfall, who has been the main villain of Simone's run on Batgirl and ties up loose ends and provides a resolution to that arc and also Simone's run. A mostly satisfying conclusion, though there are still several threads left hanging. Overall, pretty good, but I guess I won't get to find out if the Commish gets out of jail or if that thing with Ricky ever worked out...(I actually really liked the thing with Ricky? But I guess that's just going to be left hanging.)
All in all, the book had several individually really satisfying stories, but really doesn't work together as a whole. The conclusion with Knightfall was a tad underwhelming, especially when I compare it to the great climax from Volume 4, Wanted.