Ever since Groot was turned into a baby, he's been the Minion-style comic relief of the Marvel universe.
Groot's presence now often exists as a series of animated shorts that are tangentially related to the Guardians of the Galaxy movie he happens to be in.
There's not much to say about it other than it's fun and goofy and will appeal specifically to the kinds of people who loved seeing a tiny Groot dance in a flower pot in the live-action movies.
Source: The Verge
Without a traditional TV schedule to adhere to, I'd love to see more offbeat things like I Am Groot, especially given how expansive all of these fictional universes are.