It works; however, overall it's a bit frustrating...

Let’s start with the positive aspects. Once you find the right power supply and cable, it works seamlessly. It may require some trial and error to achieve this, but once you find the perfect combination, it performs as advertised. However, there’s a catch—at $150, I expect a bit more. First, it doesn’t come with a power supply or USB-C cable, and that can create somewhat frustrating challenges. Second, a cable that should have worked perfectly (at least on paper) didn’t. I’m not sure if this is a Sony issue or a cable manufacturer issue (USB C is a bit of a debacle), but at the $150 price point, Sony should include a compatible USB-C cable and eliminate this frustration. Third, the device is quite large, considering that a dummy load cable (essentially what this is) can be built with a footprint no larger than a standard USB-C cable. Fourth, to use it with an A7R VI, you either have to remove the battery door (Sony's recommendation) or leave the door open—a bit impractical in today’s world. I usually tape the door partially closed with gaffer’s tape or bright yellow painter’s tape (I’m afraid to remove it, as I might lose it). Fifth, I shoot multiple Sony cameras, and instead of offering users who already own a DC-C1 an adapter that allows them to work with both earlier Sony cameras (in my case, an A7 II and an A7R IV) and the most recent models, I now have to carry both a DC-C1 and a DC-C2—a bit inconvenient and there’s no engineering reason for this. Bottom line, does it work—yes; however, I think it's pretty expensive for what it is. I think Sony has a real opportunity to gain goodwill by addressing a few of the issues mentioned above.