[SPOILERS]
I've finished Carl's route. Man, the overall story was amazing and I love it! Not sure if his route is completely finished, haven't seen many thought/discussion about Carl though.
Sadly, his route doesn't really related to primary issues like Sydney's death and the group like other routes do.
But the best part I like was how his character's developed during hallucination scenerio where Carl was being brave and supportive when Chase really needed him. The kissing and cuddling parts were my favorite too. lol
However, I felt like I was betrayed and lost at the end. It's kinda sad as their relationship were nothing in real life, which mean they're just stay BFF (aka Friend Zone), aren't they?
Would be the best if their relationship continues, or give Chase's another chance to start over with Carl. Giving slightly closure to other friends would make his route more perfect imo.
Anyways, keep up on good works ;)