Telltale is extremely hit or miss for me, well, mostly miss because I really only dig their work on Sam & Max of what I've played thus far but I really want Walking Dead. Looks like something I'd enjoy.
it's the culmination of the direction they've going with lately (direct character control, some QTEs here and there) and they nailed it. It takes the (very few) good ideas about Jurassic Park and makes them work by still wrapping them around a more basic adventure game archetype. Throw in a heavy emphasis on player choice and different branching paths that continue through the episodes and you have something golden.
It feels very much like the "Telltale way" for the first time, they clearly have their own thing going on now that truly separates them from other adventure games.
Love it, and you should buy it.