I'm reading the novel now and think it's excellent, especially the description of the tango and the milonga scenes.
You can download the free PDF file from the BoingBoing website--just click the book cover.
It's kind of discouraging because I'm getting my memoir, The Church of Tango, ready to publish. And Mr. Shiner is giving his ebook away for free. You can still purchase a hardback copy on Amazon for $23.10.