I played this and wow... I'll be honest I didn't care much for Abby's story, but it's not terrible in the written sense. The story itself is wonderfully written, BUT it's dark.
I loved every second of the game, but as someone who battles mental illnesses, it made me uncomfortable to see it in a character. It was not badly portrayed, it was portrayed very accurately in certain places and with eerie timing that hit you right in the gut.
The gameplay itself was very smooth and I liked the dialogue between the characters as you went through the actual gameplay. While this title was unsettling, it's written very very well. The story is dark, with some very violent gameplay, which can be uncomfortable for more sensitive gamers. I thoroughly enjoyed it.