At first, the customer support wished to check I had the correct head unit for this product, I'd bought from an official online outlet and had to prove I had the correct device for the software. Then it took a few days for them to email the details I required to access the downloads (a little longer than it should have but we're in the middle of a pandemic so I'm not too worried about delays right now).
Once the files are downloaded - the install is a little weird, easy enough to follow the instruction just a strange way to register the software.
Another small point, I'm currently running Android 10, the software complains that it may not work correctly under the newer OS. Other than the warning it seems to work just fine, Recognition is okay if the car is quiet but any audio playing from the head unit (or anywhere else for that matter) will greatly reduce the accuracy of speech recognition. This is the case, even when using an external mic that's very close to my face (from a sun visor).
In all, it adds some fun functionality to the PX6, for me it's overkill, I drive a little 2 seater wannabe sports car, I just love gadgets so had to have all the fun things the PX6 can handle.
I'm very impressed overall - the PX6 is a real upgrade on my stock head unit and adding voice control was just the cherry on top. Thanks ISUDAR.