Telltale's The Walking Dead series is a work of art, it's visuals are striking (but somehow manage to not mute the sense of dread or the viscerality of the game), the voice acting is top notch and the story will really draw you in (if you give it a chance).

This series is deep and the storyline will change based on your important and seemingly unimportant) decisions. This depth of experience and the intertwined narrative is the games' biggest strength.

For those completely unfamiliar with the setup here the game may well prove to be daunting at first, do not expect to be gunning down zombies left right and centre, infact get used to not doing very much gunning at all.
Initially it may feel like you are playing a movie littered with quick time events.
This is compounded by the slow start to the first season but as it matures (the game was developed on an ongoing cycle and originally released as standalone "Episodes") it grows into one of the most emotional and subtle point and click adventure games of this generation.

It's a game not without it's faults, for all its' fantastic characters, a few fall flat through some uncharacteristically bland archetyping.
It's worth noting that the game also has a few bugs (one of which I encountered on first starting up but which had vanished when I tried to re-create it on the next boot) and the animations (specifically the transitions between them) feel really janky in the original series (though this issue seems to be all but fixed for the DLC "400 Days".)

There are striking similarities between The Walking Dead and The Last of Us (other than the zombies, DUH). Both feature incredible well crafted dialogue, stories, characters and worlds and both have high production values.
However the single most important thing these games share is that by not playing them you would be depriving yourself of two of the best games of this generation.