Dude if you can try Colombian coffee, don't need no gourmet just buy what you can find. I love sello Rojo, it's less strong than pilão but has more taste.
As for American coffee, the things I tried when travelling didn't taste like coffee at all. Everywhere I go that has this American style coffee capsules I have to put 2 expressos to even find the coffee smell, and that's from a Brazilian that thinks pilão is strong.
I'd assume the firmware is the same shipped with the vendor or pretty much very close to the sample code.
Does it require something like an API key or password? Can these implement diff Hellman key exchange? Otherwise I'd just assume you can eavesdrop when someone is updating the contents.
I read because of your comment, it was a really fun read. A bit cringe on the "we're white collar thugs and we will bully you until you do as we say", but it's hilarious how it failed spectacularly for multiple reasons.
El difícil sos vos