This is probably the purest fantasy novel I've ever read. Nothing is familiar yet everything is recognisable. It is unsettling. It's fantasy, yes, but in a nightmarish way, showing a world every bit as colourful, exciting, amoral and downright terrifying as our own.
The prose is unbelievably elegant, showing more imagination in one short chapter than many books contain in their entirety.
If you are a fan of 'heroic' fantasy, you might not enjoy this book.
On the other hand, if you like authors Gene Wolf, M. John Harrison and Jack Vance, you will find similar quality here and, for me, there's no higher praise than that!