I think the app works pretty well for basic remote functions, charging, pre heating, etc.
What would be useful is an integrated route planner that would be adopted by the car when you get in, to allow off line route planning. BMW app does this, but this is even more important on an EV where en route charging stops need to be carefully factored in.
The biggest issue I have with switch from ICE to EV is with route planning, especially so with round trips. The car nav seems to like getting to an end destination with less than 10% SOC. No good if there is no destination charger on a round trip. In car not easy to navigate an accurate return when you are not physically there. Very clunky. Even ABRP is just as clunky, but maybe I need more seat time with it to be able to set all the rules up properly for each trip.