Obviously not every story in this compilation gets four stars. Some don't even deserve one. In fact the one story in here by Orson Scott Card (probably my favorite author) is lousy.
But there are several stories here that are excellent. George Martin fans will find an great tale about a girl and a dragon. No it's not related to TSOIAF but it's great nonetheless.
This book is great for those times when you don't have time to get involved in an entire novel, but you still crave reading something good.