This is a joke, the maps resolutions are very small.
Modified review after the map update:
The publisher was very reactive and added a higher resolution of the A1 map so it's now usable. 1 star to 4 star.
Rating:
[4 of 5 Stars!]
Creator Reply:
We have added a higher resolution version of the continent detail map (the A1 poster), which should be the most noticeable. The smaller file is still up, so customers can choose between file size and resolution.
Thank you for bringing this issue to our attention!