You (and all your collaborators, too) should be proud of what you've done.
honestly, the fact that, for a few pounds' worth of parts (I think my total expenditure for parts was around £15, so €17-$20 approx, for three arduinos, three MPUs, three DFplayers, 30 leds, resistors and mosfets) you can make a decent mid-range saber soundboard, and on top of that, have the potential of being modifiable because it's arduino based is the main selling point for me.
Now, all I've got to do is actually learn how to modify the code in the first place.