Well, I'll try to keep it short. I guess everyone reading this has played through Season 1 and more or less knows what to expect from a TWD game. And if you haven't you should!
You play as Clementine this time around. She is older now, more mature and more tough. I won't go into plot details so as not to spoil anything. Suffice it to say that I liked both the new Clem and the new cast of characters. The storytelling in this episode is on par with the previous season. One scene in particular has almost made me cry.
The game looks somewhat better than the previous installments (models, animations, graphical effects). And there is a new gameplay mechanic (although this is a pretty minor change).
Overall, I liked this starting episode a lot (probably more than some of Season 1 episodes). I recommend it to everyone who has liked the first season.