This novel is a 1993 science fiction/fantasy/drug overdose/incest/pure-poetic work of art. If that sounds good, then you really shouldn't need any more convincing. Just get it. Everyone I know who reads this book is astounded by its lyrical depth and beauty. Jeff Noon should be household name for this shit. He kicks some serious literary ass.
How can you sum up the plot in one phrase? It's like Blade Runner on acid, man. Just stay away from the yellow feathers.