Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Unfulfilling, often frustrating diary of a for-hire skipper

Skipper Heutink clearly enjoys sailing, and occasionally enjoys his paying guests' company too, but he consistently fails to give us much to care about. I found this book frustrating because the author focuses on his infatuation with pretty girls (he's married and his son is his first mate), the daily trivia of mooring, cooking, and drinking, and how proud he is of his son and the trimaran he built. The prose is poorly edited and hard to parse, mostly due to Heutink's inconsistent nautical jargon, tendency to omit salient details, and failure to include maps with the names of places he visits. He's no storyteller; this is a fleshed-out (and mostly pretty dull) diary with no connective tissue. I learned nothing, and had more questions at the end than when I started the book.