In a video by @Techconnectify@mas.to, Alec goes into a deep dive into the simplicity of his particular model, its shortcomings and variety of data logging tests in an attempt to fix them.
TL,DW: Very simple, cheap and ingenious design, with one compressor loop between the fridge and freezer in series. However, its temperature sensor is wonky and so the fridge is more affected by how long the compressor operates than the actual temperature itself. There is a signficant temperature differential between the top and bottom, fans on the exterior or interior could help but with the faulty sensor only made matters worse. With the controller replaced with a proper temp control unit the fridge functioned much better.
I have a Bosch dishwasher, and it’s still really helpful to follow the directions they provide on loading. IDK if it’s a “German” thing, but they have very specific instructions, and everyone in the house is constantly like “why do you get the best results” and I’m like - I read the manual and don’t think that if you “bob load” the dishwasher (stack things 3 items deep and jam in anything you can fit without hitting the arms) it’ll work the best. I would have thought that if you block the water spray with a bowl, a plate on top if it won’t get clean, but what do I know?