Overall
Eve no Jikan is a very short series about relationships between machines and humans.
It has an amazing amount of content packed into the 6 15minute episodes, and you won't have a single boring minute watching it.
It is flawless in execution.

Animation
Animation is quite cool. It has lots of very nice looking 3D effects, and lots of first person shots.
It also has some shaky cam effects, which usually result in fruistration, but Eve no Jikan pulls it off perfect.
2D animation looks stylish, and characters are very detailed.

Sound
Soundtrack is nothing special, but blends very well into the action.
I really enjoyed the voice acting, and all the futuristic sound effects sounded appropriate.
Also the vocal ending theme from the last episode is very very catchy.

Story
Relationships between humans and robots have been done before, but Eve no Jikan's story has a lot of creative ideas.
Story has been centered around characters and their backstories. The stories are very well constructed, making every episode a blast to watch.

Character
The characters are the central focus of Eve no Jikan.
Characters were well written, and it was interesting to hear their backstories and watch them interact with each other.

Value
Thanks to its small episode count, you can pick it up and watch it again at almost any time.