I love Joey Comeau's writing, so I bought this book within a week of its publication, then I read the whole thing in about four hours and I loved it through and through.
The thing about Joey Comeau's writing, especially when it comes to sex, is that he does not shy away from depicting things realistically. There were no extensive descriptions of glistening sweat clinging to thighs or bosoms spilling out over the tops of corsets. Joey's pornography shows sex for what it really is: strange, fun, sometimes disappointing, often surprising, always interesting.
I would not say all of these pieces are specifically erotic, as the sex bits are usually detracted or interrupted by some strange or disturbing thing (the main character's OCD or the fact that one of the characters is a ghost, for example). Also, it's not traditional pornography because, for the most part, Joey definitely focuses on either the characters or the plot much more than the actual sex itself (a plus in my book).
I want to add, though, for those who aren't familiar with Joey's writing, some of the stories contain violence and are sometimes fairly disturbing (Christmas Tree Pornography and The Steps spring to mind), but most are good-natured and they are all, of course, very well-written (my favorite line of the book? "She was a mirror in the sun"), and at the end of the day, that's all that really matters.