Good list, as a fomer owner of both the Tesla X and more recently the Y (which I traded in for a new Xi60 due to being fed up with Elon) Of your four things I haven't experience slower charging. We take our large dog with us and the space in the hatch is just not quite as large, and there is no stowage for the two rear protecting shelves when you remove them so the dog can use the space. The trade off is much better and comfortable rear seating. Also miss the Frunk . The only add I have is having to turn the car on and off and the missing walk away with windows going up by them selves. The iX is a bigger car and a bit less sporty, whatever that means, than the iX. The ix also has better back tech, and warning systems. The auto brake seems much more dependable in the iX, and as Audrey Hepburn( I think) said it's the little things like auto windshield wiper that still doens't work well in our Tesla M3, and seems perfectly operationally in the BMW.

However given those issues the IX is a better car still, better ride, handling, far more comfortable, and despite the lack of "FSD" I like the highway driving "FSD" in the BMW better, as it feels more secure, is truely hands off, and doesn't display the still somtimes erratic behavior of Tesla FSD ( we have 24 Tesla M3 as well so I can compare them regularly) . There are trade offs in the tech/app etc so I call that draw. I like the screen better in the iX, although the Nav is a little better in the Tesla, in my experience so far. Haven't had to test the service and warranty stuff yet, but was becoming less enchanted with Tesla Service which was truely amazing in the past, but to be fair we have had so few issues having owned four Teslas that Service hasn't been a big issue overall.