This EP (only available as a download, although it had a brief release on CD) has two excellent tracks, and two so-so tracks. I am Not a Robot is almost exactly the same as the album track - in this version, it has a longer runout, consisting mainly of a heartbeat and sparkles. Simplify is a slender song about moving to the country for a simpler life. It is good, but it's not one of Marina's best. Starmith's remix of I Am Not a Robot is OK, if you like dance remixes, but it's nothing special.
The remaining track, Seventeen, is easily as good as anything on The Family Jewels. I have no idea why it wasn't included on the album. Like much of Marina's work, it's a little story. It has all the vocal quirks, the bizarre metaphors and richly expressive speech patterns of songs like Hollywood.
Definitely worth getting your hands on.