[REVISED] All the maps are similar. I'll use TULVIA as an example. The map dimensions are 1637 x 1157 (140 dpi) and 1/12 of the drawn map is dedicated to the city with 11/12 to the surrounding. It looks like it was done with colored pencils and pen. In the thumbnail it looks nice because you can't see that the lines are meant for style not detail. It looks like this was scanned in out of someone's sketchbook.

Conceptually: this city is well formed on the topography of the land. Artifact: This is fine if you want to just give the characters a flavor of the area and not use it for greater detail. I suppose you could put a few numbers on it for locations, but definitely not for a battle map of any kind because your icon would have to be 5 pixels wide.

SO CONCLUSION: JUST OKAY for artifact NOT OKAY for battle map

I honestly bought it and haven't used it yet because it is just a rough drawing really.