Finished this book last night, not sure if anyone else has read it.
I felt somewhat obligated to read it, versus genuinely interested in doing so, but it's a decent read overall.
I don't hold Mockingbird up in some exalted space, so I wasn't offended by the evolution or revelation of Atticus as not quite what we led to believe that has seemed to plague many readers.
I don't think it stands alone that strongly, but as a companion to Mockingbird, I think there's some merit.
So... it needed more Rorschach?