And you get that already for the cheap units.
So, it's a freezer, it freezes, and it doesn't send a post to Facebook. The only complaint I would have is their loudness. Modern extra-slow compressors are often (perceived) louder than previous-gen units.
Also: given that even DIY ovens usually start with "get a cheap PID controller from e-bay", I doubt that commercial ones use anything else.
That said, very few refrigerators out of the large number of available models (many more than say dishwashers or clothes washer/dryers) have the same interior layout.
Even two nearby models from the same manufacturer with minor feature differences will have significantly different layouts, to the point that you can't just choose to get a fridge with or without feature X without also choosing between differences in the likely more important aspect of layout.