Any terrain that blocks line of sight will be made as a thick overlay so you can remember that the terrain does in fact block LOS.
I also like the watercolor look of the maps. Of course, none of this is final art.
We only got one turn in, so didn't experience a whole lot, but did come up with a bunch of questions for Dave to take back to the creators of the game.
I think there's potential for this tactical level game that doesn't use dice and utilizes cards to supplement play. In addition, it has a unique way of handling movement with a new hex system.
See below for the video, BoardGameGeek posts by others and of course the pictures:
Boardgamegeek post of the game
BGG post of Dave's perspective of the game.
BGG post of another playtesters first couple of games.