I went into this anime completely blind, I had no idea what it would be about. But soon after seeing the art style I became very skeptical and slowly turnt more negative each episode. But that only lasted until about episode 3 or 4, which for an anime that only consists of 12 episodes, is pretty long. But still I kept watching, for reasons unknown to me something was pulling me in, making me want to keep watching. Which I did and then bam in the blink of an episode I liked it all of a sudden, I started being able to appreciate all of the characters and I loved how you could see them grow throughout the series. After a while it turned out that one of the characters thinks in a pretty similar way to me, which was awesome :)
All in all it was a pretty good show, with an heartbreaking ending and I suggest you check it out. You might find yourself liking it more than you may expect.