Needs work
While it does allow you to configure some of the Terrano XT settings it falls so short in other areas of usability. Useful improvements could include:
1. One tap access to help screen showing button functions for quick reference;
2. Better integration with Music app allowing selection of song, playlist, etc.
3. Popups on Quick Access screen to allow more control of selected function without having to access/dismiss subscreen. For example, long press on Radio button pops presets list.
4. Setting to adjust prompt volume relative to main volume.