I'm more interested in the story and characters, so I consider CGs a nice bonus, especially since I think this is a non-commercial game?
On the other hand, I do prefer to wait until a game is complete before playing to get the full experience, so I haven't actually played part 1 yet because I wanted to play parts 1+2 together. I'm really looking forward to it though because Fetch Quest was so much fun and the description for this game is 1000% up my alley!