I backed Oak on Kickstarter way back when and received 10 Oaks. I spent so many hours of my life trying to get them all to work and never did. I just popped back into this forum today to see if anything has changed and sadly, it doesn't look good. I still hold out hope for my Oaks, but in the meantime, the world has moved on and I'm going to investigate other IT options, like PI Zero.
The 3D printer looks interesting though, but I can tell you that without a strong user community, it can't survive. I bought a Tevo Black Widow printer and it had its growing pains. They all do. Without a very large Facebook group, I would have not survived.