Faithless: Dark, moody, and irresistibly interesting, Matthew Gray really created a believable and realistic world within just the first opening minutes, and used such a setting to fuel his imaginative and fresh take upon death, and a tale of revenge.
While certain aspects like voice acting, as Sonjira already pointed out, are on the weaker side of things, the overall tone and direction of the events really kept me interested in the story. The special effects were top-notch also. I'm still scratching my head over how they were done!
Spoiler (highlight to read)The whole premise of the murder plot was a bit lackluster, though, spoiling an otherwise flawless experience.
Overall, the animation is top notch, the sets (specifically the city) are really bustling and lively, and, I really loved the little snippet of Cognizance that played upon a TV in the background of a flashback. Together, everything added up to present a pretty believable LEGO world, and contrast it with a really artistic take upon the world of "limbo," all within the confines of just over 12 minutes. I really, really liked Faithless.