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’ve seen it more there, for sure. Here I’ve seen it once or twice, in expensive homes that got a very early microwave when it was a luxuty and built it right into the furniture. Most other places have a secondary spot for a smaller microwave. I actually went and got a combination one, still smaller than many of the ones you see in the US, and found that it wouldn’t fit in the microwave spot in my kitchen, so I ended up having it over a counter and using the microwave shelf as a spice rack.