Surprised to see a Java game in this day and age; required me to actually go install it fresh. The fact that there's no instructions or direct executable for the game, and you instead need to dig around in the folders to find the JAR file (and then also know what to do with it, or at least have to google it) is an immediate knock against it for presentation, for me. A game should be simple to run out of the box when downloaded, not require rooting around in sub-folders.
That aside, the game itself is mildly enjoyable, but the repetition of the steps of machine learning algorithm setting quickly wears out its welcome, since it becomes a monotonous "find the two that best match or are nearest the properties set as the goal, and then iterate". Once you manage to iterate one that matches, it also just immediately jumps the queue and starts a new goal without even showing you that you got one, other than slapping it down at the bottom of the screen to wander around.
The designs themselves aren't very interesting as well, being width, height, number of arms, and number of legs... with the first two shown by the width and height of the rectangle that is the trunk of these designs, and then single lines branching off from the side for arms or from the bottom for legs. Some of the designs are so tightly packed that there isn't even a gap to separate them, and you quickly end up just reading the values off the information sheet beneath each display instead of looking at the designs, making it feel more like you're playing Amazon MTurk: The Game, confirming values from receipts, or something similarly lackluster.
Even the music, which is somewhat decent, is a fairly generic drum-like beat that wears at your nerves after long enough, since there's no variance to it and you're left feeling more like it's a hammer pounding between your ears after awhile; it doesn't synergize with the gameplay or evoke anything specific, just feels like a backing track added just so it wasn't silent gameplay aside from the SFX bleeps and bloops. Overall, just not that fun to play.