Nothing wrong, but my friend keep on brainwash me haha.
He said yaris blindspot assist + cushion absorber + quiet cabin when full pedal compare to jazz + 4 disc brake

But his downside was the gear design a bit ugly and not trendy + legroom at the back is smaller + boot space is smaller.... thats all only i could find
But the RV not so good and expensive spare parts right?
But Yaris got blindspot assist which also comes to a draw with the Yaris

IMO it's a waste of money to sidegrade liddat. It's not much of an improvement.