Choosing compressors. Here is the thing about compressors, they have patents on them. Eventually those patents expire and other people can then begin making what are essentially clones of things such as the Danfoss compressor. When the original Dan Foss patent expired there were suddenly lots more choices of lower priced fridge/freezers. But of course the compressor itself is just one part of a system of components that make a fridge freezer operate. There is a power supply, logic boards, temperature controller, insulation, housing and lots more stuff in the package. Even reputable companies can end up with a bad batch of components. But the well known reputable companies are pretty reliable for being accountable for correcting the equipment if it does turn out to be defective.
As a lot of the new explosion of units has only been around a year or two there is not yet enough historical data around to prove which ones are the best in that lower price range grouping. Part of that historical data is the record of customer service. Some of the new units may well turn out to be decent value for the money but that remains to be seen since they have not been around long enough to establish a record of reliable longevity.
So at present you can save up your money for a more sure bet or you can take a chance on one of the newer, lower priced units. But you can't fault people who have are themselves just now trying them out for not being able to provide you with long term data about the quality and performance. They can only tell you how well they have worked for the length of time they have owned them. So don't get upset if you can't get a full answer to your question because answers don't yet exist, those less expensive units are just too new. Of course it is frustrating that you can't find an answer to what seems like a simple question but sometimes that is just how it turns out when you go seeking information.