Been putting the MicoGun through its paces all weekend. Not to sound biased, but personally I love it. Have been tweaking the code too and taking on some feedback.
I enjoy being able to switch games and adjust brightness easily, quickly and most importantly, accurately.
I have a few Irem boards and they always display too dim. So I boost the brightness with the click of a button by a few bars. CPS2 next, few bars down. Neo-Geo, displays perfectly at a neutral setting. And so on.
Will be sending a few to be beta tested, have finalised the PCB with some minor changes. Take it from there.
Thinking of open sourcing it but not sure how this will go, it's not a trivial DIY task. On the other hand, it's not terribly complicated either as the PCBs are designed to be machine soldered and populated straight from the PCB factory. All the end user has to do is solder 14 x easy to solder through hole components. Takes around 30 to 45 minutes. Then flash the code.