I agree. An arranger just works out of the box, with all the correct styles and chord functions immediately at your disposal.
Having said that, the Liontracs could really blow every arranger out of the water if the company will do all it takes to make it happen.
The Q-ranger seems a great idea but it's still work in progress. It might turn up great or not.
I believe I've been saying the bold section for four or five years now. It doesn't seem, after all this time to actually do it, that the company CAN. You're on your own, boys!