The short stories themselves are a mixed bag, but the editing of this book is an inexcusable mess. There are two parts, with separate page numbering - roman numerals for the introduction, biographical context, etc., and arabic numerals for the sotries, making it pretty unintuitive if you want to flip to, say, page 5o, that's actuall 100 pages into the book.
That would not be all that bad, if not for notes - the book is rife with them, but in the first part each chapter is followed by notes pertaining to it, while the second part has all the notes thrown in the back, because consistency is for schmucks.
Also, the notes refer to each other - of course it's not a matter of "see earlier note", acting as reminders for things you've already read - no, more often they refer you forward, including from the first part to the second.
Oh, and Murakami wrote the introduction - almost 20 pages of empty platitudes, a boring waste of paper and ink.