I got issue #5 (?) today. Pretty good issue over all, I really think the chemistry being built between "the big four" is working out very well as well as the relationship between the four and Walter Peck -overseeing their operations as a city service. We also get show that "Ray's Occult" book store still exists in this universe.
As for the action/actual plot of the issue it's a bit light but it's the opening issue for the newest arc, but the highlight of this book is really how the Ghostbusters play off one another.
Will agree that the artwork in the book could stand to be better, ideally more like the realistic looks on the alternate covers, but I suppose they'd have to pay the actors for that. I still wish the artwork in the book was a bit more realistic and not as cartoon-like.