I bought and read this book for the short story “the impression”, which is ok but not fantastic. Overall the book isn’t really my thing — its mostly a potted history of Pern and a nearly exhaustive coverage of the various weyrs, holds and craft halls that inhabit the planet. To be honest, I’d rather learn that stuff as I read the series, instead of reading a summary. Overall I think this book isn’t particularly great, although its nice to have read the short story at the right time in the sequence.
Having just read Dragonsdawn, there are also some inconsistencies which grated a little (the use of HNO3 for example, and how much knowledge of the Oort cloud the survey team had string to mind as examples).