Welcome to a T5 Starship Book, it's immensely detailed down to which fresher each crew member uses, remember to wash your hands! Simple layout format with oodles of charts, diagrams, workout sheets and deckplans. It's good but clearly for the dedicated Traveller fan. The ship included is a nice design and a classic of this game and 3 configs are drawn out in detail. I prefer the designers own books on ships but that's a personal preference. The good thing is the Gazelle is an interesting ship and not a stock PC vessel for many peoples games. Nice to see that expansion.
One thing I didn't like was the lack of PDF bookmarks which would have navigation a lot easier. In a world where the PDF for many GMs are now the default this seems an odd omission. Worth it if you love Traveller, especially the mess that T5 is.