Of the 5 five stries, Justine was the best. Her husband, Scott Westerfeld, wrote the one with the second more interesting setting, although Gabrielle Zevin's "Fan Fic" is better.
I'll definitely look into more wrks from Justine and Zevin. The first and the last stories were the weakest ones, too sweet for my taste, and made me think that the book's title was somewhat misleading.