I binge read this all the way through chapter 4 in one sitting. The only thing that stopped me was because I got the bad ending (whoops). 

Absolutely grand worldbuilding and immaculate writing of which is incredibly inspiring with the way the descriptions are. All the characters are wonderful. I could sing praises for hours.

The portrayal of PTSD is incredibly realistic and by far my favorite part of this. I look forward to chapter 5 and beyond when I get there. :D