Welsh's very best, in my opinion.
This novel takes us through the miserable life of a very dislikable lead character. Yet in spite of his repulsiveness, we are drawn to him through those things we can horrifyingly relate to in the darkest corners of our own character. He makes you feel - filthy.
However, the most accomplished and novel aspect of this book is the tapeworm. For those unfamiliar with such diseases, it is worth appreciating that it was well researched and the associated pathos was brilliantly orated as part of the narrative. While certainly an exploration of flawed humanity, on a much more sophisticated level it also contimplates the relationship between disease and self identity. Ultimately, this book is about relationships and the serendipitous, entangled ways in which they can both propagate and destroy an individual.