Just bought it and have retained Version 1 for now. A few things:
In Version 1 the physical volume toggle switch on the device controls the volume on MC, but on version 2 it does not. It just does the usual Android volume controls. This was one of the best things about the Android version over the iOS version IMO. Using the screen slider is cumbersome and the volume adjustment is jumpy unless you have a surgeon's precision, whereas it is smooth on version 1 using the physical switch. Could you please reinstate it?
Also "App follows Zones" in version 1 was broken, but seems to work fine in version 2. Thanks.
Another: Tapping certain cover art brings up the track list of the album, but tapping others does not until you scroll about a bit and try a few times. Then tapping all cover art seems to work after that.
And there was no discount for already having Version 1.