Hi, GenSek. I'm the person who builds them. My customers are all happy so far. I have more than one repeat customer so far. One of those, on Etsy, bought one and then came back to buy two more of the other so that he could work with more polyphony and stereo effects. I'm having fun building them and I plan to continue for a long time.
You know, it's really something how clean those ICs can sound once you get them out away from the workings of their old computer and game system homes. There always seems to be allot of high frequency noise in the background when these chips are in their original environments. I'm surprised by the cleanness of the signal to noise ratio with these boxes. They're crystal clear.
If you're interested in these, they'll continue to be available on Etsy, eBay and the Chocolatchips website that I just paid for (it's not yet up at this time). I don't do 'Kickstarters' or anything like that because I refuse to sell things that don't exist yet. These are real and they're waiting for musicians to use them in their music. Thanks for your interest! More devices and professional devices that are more unique are on the way.