I think the game's strong point was it's sense of decision making, which, for a first episode, picked up quite nicely from season 1. So much so, it makes one curious to go back, and to replay the decisions to see how the outcome changes. I admire TellTale Games for bringing back the adventure game genre, and for going where others haven't in quite some time.
My only complaint with the game, that would bring it's mark down a bit in my eyes, was that it was simply too short for a first episode. I felt sorely disappointed when the game ended, knowing I had only invested a quick couple of hours. I would definitely like to see the episodes be a bit longer, to give a bit more of a sense of accomplishment.
Also, I felt very led in my decisions for the game, which pulls away from the feeling of having to solve them by using your brain a bit. "Find the lighter to relight the file". The game constantly tells you and leads you in what to do. What it has become is more of an interactive story telling session, taking more and more of the true adventure game elements away.
That being said, this is what it is, and it's a joy to play. It's a good solid 7 or 8, and can't wait for episode 2.