Okay, first off, I absolutely ADORE the animation in this, it's the perfect example of not letting "perfect" be the enemy of "good." It is unpolished, even a bit sloppy at times, but clearly the all-important trade-off is that the animation overall is far more expressive and loose than if the animators had spent an excessive amount of time making everything look cleaner and more "on-model." It results in the art style having some bizarre-but-unique vibe cross between Getter Robo, the original Mobile Suit Gundam movies, and even Peanuts or Rocky and Bullwinkle.
I have mixed feelings about the voice acting. Sometimes it's too monotone, sometimes it fits the emotion the animation and movements are clearly going for, and either way the sound mixing overall makes the voices sound way too quiet compared to the background music or even sound effects, similar to the infamous sound mixing in Sonic Adventure 2. That's par for the course for most Newgrounds pilots made with smaller budgets and less polish than, say, Monkey Wrench, but considering how easy and cheap it is to get a decent microphone + edit sounds in Audacity or a free video editor, it would be nice if this pleasantly surprised me on the sound editing and voice acting front. The "FIXit" mechanic guy probably had the best and most consistent voice acting, kind of sounded like Tomar.
Speaking of "pilots"...THE ROBOT FIGHTS ARE SO COOOOOOL PLEASE MAKE MORE OF THESE EPISODES!!!