Look it up.
Everybody is CGI, As you guessed, its stuffty CGI with poor story.
BUT I DIDNT EVEN KNOW THEY WERE CHIPMUNKS BECAUSE THEY LOOKED LIKE HUMANS
gah who animates this stuff, I'd rather watch Bubble Guppies or Paw Patrol then this excuse of a show
*cough* Cartoon Network's Gardfield show *cough*