No idea what's the universe is it about, but I never liked this animation type.
Well, anyway. It smooth, and it's a big plus for this. Animation and artstyle are simple, but it makes it worse because of emotions. They aren't realistic. And you actually could make it more interesting, in example, more view points, more interesting jumps between view points to make it look professional, but keeping the style.
No idea, deserves to be in portal or not. I'll let handle this desicion for others.