The ease of use, the ability to see what is going on with your car while it's in motion, and the fact that I can do almost everything from my phone.
The only thing I don't like about this app is that the user interface sometimes feels confusing or outdated. Sometimes when I'm trying to get into something, there are too many buttons that I need to push and then sometimes I have to click one more time to actually make things happen. The app does work well though and the customer service is amazing! It's so easy to use! You can even do all of your maintenance tasks from your car!