I played the Life is Strange demo and fairly instantly knew the following:
1) It's very well made, and
2) It is absolutely not for me. My skin was crawling from the dialogue within 10 minutes. No doubt to teens or whoever it's all natural, but as a dude in my mid-30s it all sounds artificial and I have no interest in teen high school drama anyway.
You'd be surprised at how much the story resonates emotionally later on. It's only like a 5 hour romp, so you might as well give it a chance.