If you play Traveller and are likely to have your players visit low class ports then this package is for you - the purchase price includes a 40 page PDF (37 of which are crammed with information detailing all aspects of D&E class starports) - including staff, exotic food and drink, what the port shops sell and whether or not prominent features include the planetary ruler's pets have decorated the port walls... It also comes with a selection of additional PDF plans showing standard D & E ports as well as a number of generic plans of check-in areas, customs, shops, toilets, warehouses and even a port hospital that you could put together in a variety of patterns to create your very own unique starports or use on virtual tabletop systems.
I admit when I bought this I thought the price was high for what it seemed to provide so I was delighted to find that what you actually get is a complete package for designing low class starports (including asteroid port) including staff, processes and attractions as well as 3 additional full starport plans (2 D ports and 1 E) and 10 generic plans of individual facilities you can combine together. The only fluff is a separate PDF telling you how to print the maps to the proper scale.
This is good value and is worth the cost.
[5 of 5 Stars!]