Have to say that after going to the trouble of getting v. 9.0.0.0 installed, I also am wondering what this is all about. I appreciate it is not "casting" from the phone or tablet to the device but simply controlling the streaming directly to the WiiM device, which allows for higher quality. But the WiiM app does the same thing, as does LMS. I also find the Q Connect app needs an extra step to get to the volume control and seems to be missing the option to add material to the active play queue.
So, while I'm pleased that I figured out how to try Connect, after using it for a day I don't understand what the fuss was all about. The WiiM App seems far superior. I haven't found a single advantage to the Connect app. What am I missing?