If you want a real honest review and none of the faked ones then read this.
Bought this after reading up and github. in principle it sounds amazing, good concept, hardware is well built with lots of IO ports. Good design overall. Now where this product fails is the software side, unfortunately the main part of it. I can understand Mark has created a good product, and no doubt is busy developing the product. But unfortunately you cannot have a product without a good functioning software. Firstly, going into this i didn't expect it to be easy as plug and play. I thought i would support a maker, and at the least get a not so terrible printer controller, but i didn't expect it to not work at all! I downloaded the released software from github + precompiled image from the link, followed the instruction to the letter. Now i may not be as smart as mark, but i know my Linux, 3D printer, marlin and a little luck. built numerous 3d printers from scratch with no problem. But this has been a nightmare, no active forums, no actual answers, no information anywhere. Dont expect it to work straight out of the box. Like literally, you'll have to write your own software from scratch to get this to work. there were some updates recently, but it broke whatever precompiled image it came with. the forums have little to no replies, None of the issues raised have been solved.
If i were to give you any advice, stick with whatever 32bit board you can get, and use Klipper + Raspberry pi (or whatever SBC). Pi will still do everything, with a lot better community support.
In summary, I bought a very expensive Raspberry pi power supply, atleast it can handle 12-24V. (Unfortunately all pin headers are occupied)