I have all of them...it gets more emotional and it was hard for me to play the last one but that was because I lost a friend right before playing the last episode so it hit me worse than probably usual.
I've played it. If you can't get through episode 1 than this game might not be fore you. It was amazing and I started an RP kind of based on it but didn't get it up and running. The game is wonderful but it hits emotions.