This is a really cool story! I think the beginning is maybe a little slow but by the end it gets so twisty and fascinating. I love the slow realization of exactly how unreliable Dana is as the narrator, but since the only other character is also incredibly unreliable, what are you gonna do? The way it jumps back and forth through time to disprove to the reader Dana's understanding of the present is cool and really made me want to keep reading.
Also, Val especially is really compelling and I love her design (the cgs of the two of them, especially the final one, are very good).