While Ground Zero has never been a bad book this issue shows a marked improvement on recent issues, where the need to show the action of the Injustice game for the benefit of those readers who haven't played it slowed the pacing a bit. This chapter has no such issues, with the various subplots moving at a rapid pace. Harley's story remains the high-point, however, with Christopher Sebela showcasing a true command of Harley's rich character and internal conflict.
The artwork is just plain fantastic. I've been a big fan of the collaborations between Daniel Sampere and Juan Albarran for a while now and their work here is a prime example of why that is so, Rex Lokus' color art provides the perfect finishes to the pencils and inks