I won’t touch this with a 10 foot pole. Stupid.
If they really wanted to make a play at beating CarPlay and Android Auto, they should make a superior product, but include both of the alternatives in the car. As a customer, I would still consider buying the car if it included CarPlay. I won’t even consider it with this, which means I won’t even be in a position to try GM’s alternative. It’s too big of a risk to spend $30-40k on a new car and hope their custom infotainment isn’t trash and works nicely with all the data and apps I have in my smartphone.