Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great fun

This book seems to have been inspired by "The Final Countdown" that great alternate history/sci-fi film about a modern aircraft carrier going back in time to days before Pearl Harbor. The book expands on the theme by sending a multinational fleet from our near-future back to the middle of WWII. While the multiple characters do get confusing, the story is really compelling as the author runs in all directions with themes untouched in "The Final Countdown." If you loved that movie, you'll love this book.