1. No climate control, so remote start is largely useless.
2. Remote start ends if the car loses cell connectivity for even a moment. So starting the car in my driveway may fail two minutes in. So even if I could control the climate (or remembered to set it before I shut off the car the last time I drove), it wouldn't matter since the car may just shut off.
3. When you remote start and then get into the car, the engine just shuts off again, forcing you to immediately start it back up. This is annoying and must be terrible for the car.
4. I have to relogin to the app practically every time I use it.
So I would never pay for this.