I've been keeping up with this series since it started, and the writing just keeps getting better.
This volume deals with a question that I know many Ghostbusters fans have probably asked themselves: "What about the rest of the country? Do the Ghostbusters ever leave New York?"
The volume contains issues 9-12, each story deals with another part of the country in a fascinating way (like dealing with "alien" ghosts). The writers obviously love the Ghostbusters mythos a lot, and have done their homework bringing all the various elements together into this series. A huge example is the re-introduction of a fan-favorite of the short lived Extreme Ghostbusters cartoon, Kylie Griffin. She works part-time at Ray's Occult Books, while doing research for the boys while they're out in the field.
I highly recommend this series to any Ghostbusters fan. I expect great things from this series!